Karanović, Ljiljana

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orcid::0000-0001-9534-1315
  • Karanović, Ljiljana (21)
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Author's Bibliography

Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag

Nikolić, Irena; Marković, Smilja; Janković Častvan, Ivona; Radmilović, Vuk V.; Karanović, Ljiljana; Babić, Biljana M.; Radmilović, Velimir R.

(Elsevier, 2016)

TY  - JOUR
AU  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Janković Častvan, Ivona
AU  - Radmilović, Vuk V.
AU  - Karanović, Ljiljana
AU  - Babić, Biljana M.
AU  - Radmilović, Velimir R.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/4639
AB  - Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0–40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N–(C)–A–S–H gel along with geopolymer-type gel (N–A–S–H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600–800 °C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 °C due to the phase transition and morphological transformation of the amorphous gel phase.
PB  - Elsevier
T2  - Materials Letters
T1  - Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag
SP  - 301
EP  - 305
VL  - 176
DO  - 10.1016/j.matlet.2016.04.121
UR  - https://hdl.handle.net/21.15107/rcub_dais_4639
ER  - 
@article{
author = "Nikolić, Irena and Marković, Smilja and Janković Častvan, Ivona and Radmilović, Vuk V. and Karanović, Ljiljana and Babić, Biljana M. and Radmilović, Velimir R.",
year = "2016",
abstract = "Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0–40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N–(C)–A–S–H gel along with geopolymer-type gel (N–A–S–H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600–800 °C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 °C due to the phase transition and morphological transformation of the amorphous gel phase.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag",
pages = "301-305",
volume = "176",
doi = "10.1016/j.matlet.2016.04.121",
url = "https://hdl.handle.net/21.15107/rcub_dais_4639"
}
Nikolić, I., Marković, S., Janković Častvan, I., Radmilović, V. V., Karanović, L., Babić, B. M.,& Radmilović, V. R.. (2016). Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters
Elsevier., 176, 301-305.
https://doi.org/10.1016/j.matlet.2016.04.121
https://hdl.handle.net/21.15107/rcub_dais_4639
Nikolić I, Marković S, Janković Častvan I, Radmilović VV, Karanović L, Babić BM, Radmilović VR. Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters. 2016;176:301-305.
doi:10.1016/j.matlet.2016.04.121
https://hdl.handle.net/21.15107/rcub_dais_4639 .
Nikolić, Irena, Marković, Smilja, Janković Častvan, Ivona, Radmilović, Vuk V., Karanović, Ljiljana, Babić, Biljana M., Radmilović, Velimir R., "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag" in Materials Letters, 176 (2016):301-305,
https://doi.org/10.1016/j.matlet.2016.04.121 .,
https://hdl.handle.net/21.15107/rcub_dais_4639 .
27
25
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Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag

Nikolić, Irena; Marković, Smilja; Janković Častvan, Ivona; Radmilović, Vuk V.; Karanović, Ljiljana; Babić, Biljana M.; Radmilović, Velimir R.

(Elsevier, 2016)

TY  - JOUR
AU  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Janković Častvan, Ivona
AU  - Radmilović, Vuk V.
AU  - Karanović, Ljiljana
AU  - Babić, Biljana M.
AU  - Radmilović, Velimir R.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/15992
AB  - Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0–40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N–(C)–A–S–H gel along with geopolymer-type gel (N–A–S–H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600–800 °C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 °C due to the phase transition and morphological transformation of the amorphous gel phase.
PB  - Elsevier
T2  - Materials Letters
T1  - Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag
SP  - 301
EP  - 305
VL  - 176
DO  - 10.1016/j.matlet.2016.04.121
UR  - https://hdl.handle.net/21.15107/rcub_dais_15992
ER  - 
@article{
author = "Nikolić, Irena and Marković, Smilja and Janković Častvan, Ivona and Radmilović, Vuk V. and Karanović, Ljiljana and Babić, Biljana M. and Radmilović, Velimir R.",
year = "2016",
abstract = "Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0–40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N–(C)–A–S–H gel along with geopolymer-type gel (N–A–S–H). Thermal resistance of GB was considered from the standpoint of their mechanical and dimensional stability after heating in the temperature interval of 600–800 °C. The changes in mechanical and thermal properties of GB after heating are attributed to the changes in their structure. The results have shown that EAFS negatively affects the thermal resistance of GB above 600 °C due to the phase transition and morphological transformation of the amorphous gel phase.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag",
pages = "301-305",
volume = "176",
doi = "10.1016/j.matlet.2016.04.121",
url = "https://hdl.handle.net/21.15107/rcub_dais_15992"
}
Nikolić, I., Marković, S., Janković Častvan, I., Radmilović, V. V., Karanović, L., Babić, B. M.,& Radmilović, V. R.. (2016). Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters
Elsevier., 176, 301-305.
https://doi.org/10.1016/j.matlet.2016.04.121
https://hdl.handle.net/21.15107/rcub_dais_15992
Nikolić I, Marković S, Janković Častvan I, Radmilović VV, Karanović L, Babić BM, Radmilović VR. Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters. 2016;176:301-305.
doi:10.1016/j.matlet.2016.04.121
https://hdl.handle.net/21.15107/rcub_dais_15992 .
Nikolić, Irena, Marković, Smilja, Janković Častvan, Ivona, Radmilović, Vuk V., Karanović, Ljiljana, Babić, Biljana M., Radmilović, Velimir R., "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag" in Materials Letters, 176 (2016):301-305,
https://doi.org/10.1016/j.matlet.2016.04.121 .,
https://hdl.handle.net/21.15107/rcub_dais_15992 .
27
25
28

Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag

Nikolić, Irena; Marković, Smilja; Karanović, Ljiljana; Radmilović, Vuk V.; Radmilović, Velimir R.

(Belgrade : Materials Research Society of Serbia, 2015)

TY  - CONF
AU  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Karanović, Ljiljana
AU  - Radmilović, Vuk V.
AU  - Radmilović, Velimir R.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/829
AB  - The thermal resistance of alkali-activated binders based on fly ash (FA), electric arc furnace slag (EAFS) and their FA/EAFS blends was assessed. Compressive strengths of samples before and after firing were measured. The samples were characterized by X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energydispersive X-ray spectra (EDS), thermal (TG/DTA) analysis. Besides, the sintering shrinkage were recorded by thermomechanical analyzer (TMA) during non-isothermal sintering up to 900 ºC with heating rate of 15 º/min, in an air atmosphere. The main reaction products in FA and EAFS based alkali activated binders are the sodiumalumino-silicate-hydrate (N–A–S–H) and calcium-alumino-silicate-hydrate (C-A-S-H) type gels, respectively. FA/EAFS based binders are characterized by the presence of N-A-S-H gel with the high content of Ca. The EAFS based binders exhibited superior performances in terms of compressive strength than FA based binders. Thermal resistance of FA based binders was improved by the slag addition. This research was supported by a Ministry of Science of Montenegro under the contract No. 01-460.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015
T1  - Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag
SP  - 24
EP  - 24
UR  - https://hdl.handle.net/21.15107/rcub_dais_829
ER  - 
@conference{
author = "Nikolić, Irena and Marković, Smilja and Karanović, Ljiljana and Radmilović, Vuk V. and Radmilović, Velimir R.",
year = "2015",
abstract = "The thermal resistance of alkali-activated binders based on fly ash (FA), electric arc furnace slag (EAFS) and their FA/EAFS blends was assessed. Compressive strengths of samples before and after firing were measured. The samples were characterized by X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energydispersive X-ray spectra (EDS), thermal (TG/DTA) analysis. Besides, the sintering shrinkage were recorded by thermomechanical analyzer (TMA) during non-isothermal sintering up to 900 ºC with heating rate of 15 º/min, in an air atmosphere. The main reaction products in FA and EAFS based alkali activated binders are the sodiumalumino-silicate-hydrate (N–A–S–H) and calcium-alumino-silicate-hydrate (C-A-S-H) type gels, respectively. FA/EAFS based binders are characterized by the presence of N-A-S-H gel with the high content of Ca. The EAFS based binders exhibited superior performances in terms of compressive strength than FA based binders. Thermal resistance of FA based binders was improved by the slag addition. This research was supported by a Ministry of Science of Montenegro under the contract No. 01-460.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015",
title = "Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag",
pages = "24-24",
url = "https://hdl.handle.net/21.15107/rcub_dais_829"
}
Nikolić, I., Marković, S., Karanović, L., Radmilović, V. V.,& Radmilović, V. R.. (2015). Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag. in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015
Belgrade : Materials Research Society of Serbia., 24-24.
https://hdl.handle.net/21.15107/rcub_dais_829
Nikolić I, Marković S, Karanović L, Radmilović VV, Radmilović VR. Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag. in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015. 2015;:24-24.
https://hdl.handle.net/21.15107/rcub_dais_829 .
Nikolić, Irena, Marković, Smilja, Karanović, Ljiljana, Radmilović, Vuk V., Radmilović, Velimir R., "Thermal Resistance of Alkali Activated Binders Synthesized Using the Fly Ash and Steel Slag" in Programme and The Book of Abstracts / Seventeenth Annual Conference YUCOMAT 205, Herceg Novi, August 31– September 4, 2015 (2015):24-24,
https://hdl.handle.net/21.15107/rcub_dais_829 .

Geopolymer materials based on the electric arc furnace slag

Nikolić, Irena; Janković Častvan, Ivona; Radmilović, Vuk V.; Karanović, Ljiljana; Marković, Smilja; Mentus, Slavko; Radmilović, Velimir R.

(Belgrade : Materials Research Society of Serbia, 2013)

TY  - CONF
AU  - Nikolić, Irena
AU  - Janković Častvan, Ivona
AU  - Radmilović, Vuk V.
AU  - Karanović, Ljiljana
AU  - Marković, Smilja
AU  - Mentus, Slavko
AU  - Radmilović, Velimir R.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/401
AB  - The remelting of iron and steel scrap in the electric arc furnaces generates the non-hazardous waste – electric arc furnace slag (EAFS), which can be disposed of to appropriate landfills. Currently, this slag found its application in conventional concrete production to improve its mechanical, chemical and physical properties, as an additive to asphalt base mixture and in cement production. In this study we have investigated the effect of alkaline dosage on the strength and thermal resistance of EAFS based geopolymers. The results have shown that these materials are mainly amorphous with some crystal phases remained from the undisolved EAFS such as larnite, gehlenite, wuestite, monticellite, calcite. Compressive strength of these materials is strongly influenced by the alkaline dosage. An increase of NaOH concentration in the interval of 7-10 M leads to the increase of geopolymer’s strength. The maximal compressive strength of EAFS based geopolymer was obtained using the 10 M NaOH. Further increase of alkaline dosage to the value of 13 M NaOH results in the slight decrease of the geopolymer strength. Additionally, depending on the synthesis parameters, EAFS based geopolymers exhibit improved durability in high temperature environments in comparison with conventional cement based materials. All investigated samples exhibit a shrinkage which is attributed to the change of porosity. The mass loss due to the loss of water was also observed. This research was supported by a Ministry of Science of Montenegro under the contract No 01-460.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts
T1  - Geopolymer materials based on the electric arc furnace slag
SP  - 47
EP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_dais_401
ER  - 
@conference{
author = "Nikolić, Irena and Janković Častvan, Ivona and Radmilović, Vuk V. and Karanović, Ljiljana and Marković, Smilja and Mentus, Slavko and Radmilović, Velimir R.",
year = "2013",
abstract = "The remelting of iron and steel scrap in the electric arc furnaces generates the non-hazardous waste – electric arc furnace slag (EAFS), which can be disposed of to appropriate landfills. Currently, this slag found its application in conventional concrete production to improve its mechanical, chemical and physical properties, as an additive to asphalt base mixture and in cement production. In this study we have investigated the effect of alkaline dosage on the strength and thermal resistance of EAFS based geopolymers. The results have shown that these materials are mainly amorphous with some crystal phases remained from the undisolved EAFS such as larnite, gehlenite, wuestite, monticellite, calcite. Compressive strength of these materials is strongly influenced by the alkaline dosage. An increase of NaOH concentration in the interval of 7-10 M leads to the increase of geopolymer’s strength. The maximal compressive strength of EAFS based geopolymer was obtained using the 10 M NaOH. Further increase of alkaline dosage to the value of 13 M NaOH results in the slight decrease of the geopolymer strength. Additionally, depending on the synthesis parameters, EAFS based geopolymers exhibit improved durability in high temperature environments in comparison with conventional cement based materials. All investigated samples exhibit a shrinkage which is attributed to the change of porosity. The mass loss due to the loss of water was also observed. This research was supported by a Ministry of Science of Montenegro under the contract No 01-460.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts",
title = "Geopolymer materials based on the electric arc furnace slag",
pages = "47-47",
url = "https://hdl.handle.net/21.15107/rcub_dais_401"
}
Nikolić, I., Janković Častvan, I., Radmilović, V. V., Karanović, L., Marković, S., Mentus, S.,& Radmilović, V. R.. (2013). Geopolymer materials based on the electric arc furnace slag. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 47-47.
https://hdl.handle.net/21.15107/rcub_dais_401
Nikolić I, Janković Častvan I, Radmilović VV, Karanović L, Marković S, Mentus S, Radmilović VR. Geopolymer materials based on the electric arc furnace slag. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts. 2013;:47-47.
https://hdl.handle.net/21.15107/rcub_dais_401 .
Nikolić, Irena, Janković Častvan, Ivona, Radmilović, Vuk V., Karanović, Ljiljana, Marković, Smilja, Mentus, Slavko, Radmilović, Velimir R., "Geopolymer materials based on the electric arc furnace slag" in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts (2013):47-47,
https://hdl.handle.net/21.15107/rcub_dais_401 .

Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf

Poleti, Dejan; Karanović, Ljiljana; Zdujić, Miodrag; Jovalekić, Čedomir

(Belgrade : Serbian Chemical Society, 2012)

TY  - JOUR
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Jovalekić, Čedomir
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/270
AB  - Powder mixtures of α-Bi2O3 containing 2, 5 and 10 mole % of TiO2, ZrO2 or HfO2 were homogenized, heated at 820ºC for 24 h and quenched in air. X-ray powder diffraction technique was used to characterize the prepared samples. In all cases metastable Bi2O3 polymorphs, γ-Bi2O3 or β-Bi2O3, are found as single or major phases. Addition of Ti4+ ions stabilizes γ-Bi2O3 polymorph, while either Zr4+ or Hf4+ ions stabilize β-Bi2O3 polymorph. In the samples with 2 and 5 mole % of TiO2 the presence of even two γ-Bi2O3 phases (Bi12TiO20 compound and a very low Ti-doped γ-Bi2O3) was established. Similarly, in the sample with 2 mole % of HfO2 two β-Bi2O3 phases were found. Phase composition of prepared samples, values of unit cell parameters and the appearance of two polymorphs with identical crystal structure but different unit cell parameters are discussed and compared with known data.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf
SP  - 1091
EP  - 1096
VL  - 77
IS  - 8
DO  - 10.2298/JSC110914215P
UR  - https://hdl.handle.net/21.15107/rcub_dais_270
ER  - 
@article{
author = "Poleti, Dejan and Karanović, Ljiljana and Zdujić, Miodrag and Jovalekić, Čedomir",
year = "2012",
abstract = "Powder mixtures of α-Bi2O3 containing 2, 5 and 10 mole % of TiO2, ZrO2 or HfO2 were homogenized, heated at 820ºC for 24 h and quenched in air. X-ray powder diffraction technique was used to characterize the prepared samples. In all cases metastable Bi2O3 polymorphs, γ-Bi2O3 or β-Bi2O3, are found as single or major phases. Addition of Ti4+ ions stabilizes γ-Bi2O3 polymorph, while either Zr4+ or Hf4+ ions stabilize β-Bi2O3 polymorph. In the samples with 2 and 5 mole % of TiO2 the presence of even two γ-Bi2O3 phases (Bi12TiO20 compound and a very low Ti-doped γ-Bi2O3) was established. Similarly, in the sample with 2 mole % of HfO2 two β-Bi2O3 phases were found. Phase composition of prepared samples, values of unit cell parameters and the appearance of two polymorphs with identical crystal structure but different unit cell parameters are discussed and compared with known data.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf",
pages = "1091-1096",
volume = "77",
number = "8",
doi = "10.2298/JSC110914215P",
url = "https://hdl.handle.net/21.15107/rcub_dais_270"
}
Poleti, D., Karanović, L., Zdujić, M.,& Jovalekić, Č.. (2012). Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 77(8), 1091-1096.
https://doi.org/10.2298/JSC110914215P
https://hdl.handle.net/21.15107/rcub_dais_270
Poleti D, Karanović L, Zdujić M, Jovalekić Č. Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf. in Journal of the Serbian Chemical Society. 2012;77(8):1091-1096.
doi:10.2298/JSC110914215P
https://hdl.handle.net/21.15107/rcub_dais_270 .
Poleti, Dejan, Karanović, Ljiljana, Zdujić, Miodrag, Jovalekić, Čedomir, "Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf" in Journal of the Serbian Chemical Society, 77, no. 8 (2012):1091-1096,
https://doi.org/10.2298/JSC110914215P .,
https://hdl.handle.net/21.15107/rcub_dais_270 .
7
7
7

Solid state synthesis of extra phase-pure Li4Ti5O12 spinel

Veljković, Ivana; Poleti, Dejan; Karanović, Ljiljana; Zdujić, Miodrag; Branković, Goran

(Belgrade : International Institute for the Science of Sintering, 2011)

TY  - JOUR
AU  - Veljković, Ivana
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Branković, Goran
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/199
AB  - Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. Structural and microstructural properties, the mechanism of solid state reaction between anatase and Li2CO3 as well as thermal stability of prepared spinel were investigated using XRPD, SEM and TG/DSC analysis. The mechanism of reaction implies decomposition of Li2CO3 below 250ºC, formation of monoclinic Li2TiO3 as intermediate product between 400 and 600°C and its transformation to Li4Ti5O12 between 600-800ºC. The spinel structure is stable up to 1000ºC when it is decomposed due to Li2O evaporation.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Solid state synthesis of extra phase-pure Li4Ti5O12 spinel
SP  - 343
EP  - 351
VL  - 43
IS  - 3
DO  - 10.2298/SOS1103343V
UR  - https://hdl.handle.net/21.15107/rcub_dais_199
ER  - 
@article{
author = "Veljković, Ivana and Poleti, Dejan and Karanović, Ljiljana and Zdujić, Miodrag and Branković, Goran",
year = "2011",
abstract = "Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. Structural and microstructural properties, the mechanism of solid state reaction between anatase and Li2CO3 as well as thermal stability of prepared spinel were investigated using XRPD, SEM and TG/DSC analysis. The mechanism of reaction implies decomposition of Li2CO3 below 250ºC, formation of monoclinic Li2TiO3 as intermediate product between 400 and 600°C and its transformation to Li4Ti5O12 between 600-800ºC. The spinel structure is stable up to 1000ºC when it is decomposed due to Li2O evaporation.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Solid state synthesis of extra phase-pure Li4Ti5O12 spinel",
pages = "343-351",
volume = "43",
number = "3",
doi = "10.2298/SOS1103343V",
url = "https://hdl.handle.net/21.15107/rcub_dais_199"
}
Veljković, I., Poleti, D., Karanović, L., Zdujić, M.,& Branković, G.. (2011). Solid state synthesis of extra phase-pure Li4Ti5O12 spinel. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 43(3), 343-351.
https://doi.org/10.2298/SOS1103343V
https://hdl.handle.net/21.15107/rcub_dais_199
Veljković I, Poleti D, Karanović L, Zdujić M, Branković G. Solid state synthesis of extra phase-pure Li4Ti5O12 spinel. in Science of Sintering. 2011;43(3):343-351.
doi:10.2298/SOS1103343V
https://hdl.handle.net/21.15107/rcub_dais_199 .
Veljković, Ivana, Poleti, Dejan, Karanović, Ljiljana, Zdujić, Miodrag, Branković, Goran, "Solid state synthesis of extra phase-pure Li4Ti5O12 spinel" in Science of Sintering, 43, no. 3 (2011):343-351,
https://doi.org/10.2298/SOS1103343V .,
https://hdl.handle.net/21.15107/rcub_dais_199 .
6
23
23
24

Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology

Marković, Smilja; Veselinović, Ljiljana; Lukić, Miodrag J.; Karanović, Ljiljana; Bračko, Ines; Ignjatović, Nenad; Uskoković, Dragan

(IOP Publishing, 2011)

TY  - JOUR
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Lukić, Miodrag J.
AU  - Karanović, Ljiljana
AU  - Bračko, Ines
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/731
AB  - Phase composition, crystal structure and morphology of biological hydroxyapatite (BHAp) extracted from human mandible bone, and carbonated hydroxyapatite (CHAp), synthesized by the chemical precipitation method, were studied by x-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and Raman (R) spectroscopy techniques, combined with transmission electron microscopy (TEM). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRD data, performed using the FullProf computing program, and TEM. Microstructural analysis shows anisotropic extension along the [0 0 l] crystallographic direction (i.e. elongated crystallites shape) of both investigated samples. The average crystallite sizes of 10 and 8 nm were estimated for BHAp and CHAp, respectively. The FTIR and R spectroscopy studies show that carbonate ions substitute both phosphate and hydroxyl ions in the crystal structure of BHAp as well as in CHAp, indicating that both of them are mixed AB-type of CHAp. The thermal behaviour and carbonate content were analysed using thermogravimetric and differential thermal analysis. The carbonate content of about 1 wt.% and phase transition, at near 790 °C, from HAp to β-tricalcium phosphate were determined in both samples. The quality of synthesized CHAp powder, particularly, the particle size distribution and uniformity of morphology, was analysed by a particle size analyser based on laser diffraction and field emission scanning electron microscopy, respectively. These data were used to discuss similarity between natural and synthetic CHAp. Good correlation between the unit cell parameters, average crystallite size, morphology, carbonate content and crystallographic positions of carbonate ions in natural and synthetic HAp samples was found.
PB  - IOP Publishing
T2  - Biomedical Materials
T1  - Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology
EP  - Art. No. 045005
VL  - 6
DO  - 10.1088/1748-6041/6/4/045005
UR  - https://hdl.handle.net/21.15107/rcub_dais_731
ER  - 
@article{
author = "Marković, Smilja and Veselinović, Ljiljana and Lukić, Miodrag J. and Karanović, Ljiljana and Bračko, Ines and Ignjatović, Nenad and Uskoković, Dragan",
year = "2011",
abstract = "Phase composition, crystal structure and morphology of biological hydroxyapatite (BHAp) extracted from human mandible bone, and carbonated hydroxyapatite (CHAp), synthesized by the chemical precipitation method, were studied by x-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and Raman (R) spectroscopy techniques, combined with transmission electron microscopy (TEM). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRD data, performed using the FullProf computing program, and TEM. Microstructural analysis shows anisotropic extension along the [0 0 l] crystallographic direction (i.e. elongated crystallites shape) of both investigated samples. The average crystallite sizes of 10 and 8 nm were estimated for BHAp and CHAp, respectively. The FTIR and R spectroscopy studies show that carbonate ions substitute both phosphate and hydroxyl ions in the crystal structure of BHAp as well as in CHAp, indicating that both of them are mixed AB-type of CHAp. The thermal behaviour and carbonate content were analysed using thermogravimetric and differential thermal analysis. The carbonate content of about 1 wt.% and phase transition, at near 790 °C, from HAp to β-tricalcium phosphate were determined in both samples. The quality of synthesized CHAp powder, particularly, the particle size distribution and uniformity of morphology, was analysed by a particle size analyser based on laser diffraction and field emission scanning electron microscopy, respectively. These data were used to discuss similarity between natural and synthetic CHAp. Good correlation between the unit cell parameters, average crystallite size, morphology, carbonate content and crystallographic positions of carbonate ions in natural and synthetic HAp samples was found.",
publisher = "IOP Publishing",
journal = "Biomedical Materials",
title = "Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology",
pages = "Art. No. 045005",
volume = "6",
doi = "10.1088/1748-6041/6/4/045005",
url = "https://hdl.handle.net/21.15107/rcub_dais_731"
}
Marković, S., Veselinović, L., Lukić, M. J., Karanović, L., Bračko, I., Ignjatović, N.,& Uskoković, D.. (2011). Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology. in Biomedical Materials
IOP Publishing., 6.
https://doi.org/10.1088/1748-6041/6/4/045005
https://hdl.handle.net/21.15107/rcub_dais_731
Marković S, Veselinović L, Lukić MJ, Karanović L, Bračko I, Ignjatović N, Uskoković D. Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology. in Biomedical Materials. 2011;6:null-Art. No. 045005.
doi:10.1088/1748-6041/6/4/045005
https://hdl.handle.net/21.15107/rcub_dais_731 .
Marković, Smilja, Veselinović, Ljiljana, Lukić, Miodrag J., Karanović, Ljiljana, Bračko, Ines, Ignjatović, Nenad, Uskoković, Dragan, "Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology" in Biomedical Materials, 6 (2011),
https://doi.org/10.1088/1748-6041/6/4/045005 .,
https://hdl.handle.net/21.15107/rcub_dais_731 .
64
62
65

Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327

Veselinović, Ljiljana; Karanović, Ljiljana; Bračko, Ines; Marković, Smilja; Ignjatović, Nenad; Uskoković, Dragan

(2010)

TY  - DATA
AU  - Veselinović, Ljiljana
AU  - Karanović, Ljiljana
AU  - Bračko, Ines
AU  - Marković, Smilja
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3442
AB  - Rietveld powder data file contains datablocks HAp, Co5HAp, Co10HAp, Co15HAp, Co20HAp
T2  - Journal of Applied Crystallography
T1  - Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327
UR  - https://hdl.handle.net/21.15107/rcub_dais_3442
ER  - 
@misc{
author = "Veselinović, Ljiljana and Karanović, Ljiljana and Bračko, Ines and Marković, Smilja and Ignjatović, Nenad and Uskoković, Dragan",
year = "2010",
abstract = "Rietveld powder data file contains datablocks HAp, Co5HAp, Co10HAp, Co15HAp, Co20HAp",
journal = "Journal of Applied Crystallography",
title = "Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327",
url = "https://hdl.handle.net/21.15107/rcub_dais_3442"
}
Veselinović, L., Karanović, L., Bračko, I., Marković, S., Ignjatović, N.,& Uskoković, D.. (2010). Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327. in Journal of Applied Crystallography.
https://hdl.handle.net/21.15107/rcub_dais_3442
Veselinović L, Karanović L, Bračko I, Marković S, Ignjatović N, Uskoković D. Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327. in Journal of Applied Crystallography. 2010;.
https://hdl.handle.net/21.15107/rcub_dais_3442 .
Veselinović, Ljiljana, Karanović, Ljiljana, Bračko, Ines, Marković, Smilja, Ignjatović, Nenad, Uskoković, Dragan, "Rietveld powder data file for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327" in Journal of Applied Crystallography (2010),
https://hdl.handle.net/21.15107/rcub_dais_3442 .

Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing

Veselinović, Ljiljana; Karanović, Ljiljana; Stojanović, Zoran S.; Bračko, Ines; Marković, Smilja; Ignjatović, Nenad; Uskoković, Dragan

(Chester: International Union of Crystallography, 2010)

TY  - JOUR
AU  - Veselinović, Ljiljana
AU  - Karanović, Ljiljana
AU  - Stojanović, Zoran S.
AU  - Bračko, Ines
AU  - Marković, Smilja
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3428
AB  - A series of cobalt-exchanged hydroxyapatite (CoHAp) powders with different Ca/Co ratios and nominal unit-cell contents Ca10-x Cox (PO4)6(OH)2, x = 0, 0.5, 1.0, 1.5 and 2.0, were synthesized by hydrothermal treatment of a precipitate at 473 K for 8 h. Based on ICP (inductively coupled plasma) emission spectroscopy analysis, it was established that the maximum amount of cobalt incorporation saturated at 7sim;12 at.% under these conditions. The effects of cobalt content on the CoHAp powders were investigated using ICP emission spectroscopy, particle size analysis, transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) analyses as well as X-ray powder diffraction (XRPD) including Rietveld analysis. According to XRPD, all the materials are single-phase HAp and CoHAp of low crystallinity. Rietveld analysis shows that Co enrichment causes the c cell parameter to decrease at a faster rate than the a cell parameter. A microstructural analysis showed anisotropic X-ray line broadening due to crystallite size reduction. In CoHAp there is significant crystal elongation in [001], and the average size decreases with increasing cobalt content. The crystallite morphology transforms from rod-like for the pure HAp to lamellae at the highest degree of Co substitution. The results of Rietveld refinement (symmetry, size and morphology of the crystallites) were confirmed by TEM and HRTEM analysis. © 2010 International Union of Crystallography. Printed in Singapore-all rights reserved.
PB  - Chester: International Union of Crystallography
T2  - Journal of Applied Crystallography
T1  - Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing
SP  - 320
EP  - 327
VL  - 43
IS  - 2
DO  - 10.1107/S0021889809051395
UR  - https://hdl.handle.net/21.15107/rcub_dais_3428
ER  - 
@article{
author = "Veselinović, Ljiljana and Karanović, Ljiljana and Stojanović, Zoran S. and Bračko, Ines and Marković, Smilja and Ignjatović, Nenad and Uskoković, Dragan",
year = "2010",
abstract = "A series of cobalt-exchanged hydroxyapatite (CoHAp) powders with different Ca/Co ratios and nominal unit-cell contents Ca10-x Cox (PO4)6(OH)2, x = 0, 0.5, 1.0, 1.5 and 2.0, were synthesized by hydrothermal treatment of a precipitate at 473 K for 8 h. Based on ICP (inductively coupled plasma) emission spectroscopy analysis, it was established that the maximum amount of cobalt incorporation saturated at 7sim;12 at.% under these conditions. The effects of cobalt content on the CoHAp powders were investigated using ICP emission spectroscopy, particle size analysis, transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) analyses as well as X-ray powder diffraction (XRPD) including Rietveld analysis. According to XRPD, all the materials are single-phase HAp and CoHAp of low crystallinity. Rietveld analysis shows that Co enrichment causes the c cell parameter to decrease at a faster rate than the a cell parameter. A microstructural analysis showed anisotropic X-ray line broadening due to crystallite size reduction. In CoHAp there is significant crystal elongation in [001], and the average size decreases with increasing cobalt content. The crystallite morphology transforms from rod-like for the pure HAp to lamellae at the highest degree of Co substitution. The results of Rietveld refinement (symmetry, size and morphology of the crystallites) were confirmed by TEM and HRTEM analysis. © 2010 International Union of Crystallography. Printed in Singapore-all rights reserved.",
publisher = "Chester: International Union of Crystallography",
journal = "Journal of Applied Crystallography",
title = "Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing",
pages = "320-327",
volume = "43",
number = "2",
doi = "10.1107/S0021889809051395",
url = "https://hdl.handle.net/21.15107/rcub_dais_3428"
}
Veselinović, L., Karanović, L., Stojanović, Z. S., Bračko, I., Marković, S., Ignjatović, N.,& Uskoković, D.. (2010). Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. in Journal of Applied Crystallography
Chester: International Union of Crystallography., 43(2), 320-327.
https://doi.org/10.1107/S0021889809051395
https://hdl.handle.net/21.15107/rcub_dais_3428
Veselinović L, Karanović L, Stojanović ZS, Bračko I, Marković S, Ignjatović N, Uskoković D. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. in Journal of Applied Crystallography. 2010;43(2):320-327.
doi:10.1107/S0021889809051395
https://hdl.handle.net/21.15107/rcub_dais_3428 .
Veselinović, Ljiljana, Karanović, Ljiljana, Stojanović, Zoran S., Bračko, Ines, Marković, Smilja, Ignjatović, Nenad, Uskoković, Dragan, "Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing" in Journal of Applied Crystallography, 43, no. 2 (2010):320-327,
https://doi.org/10.1107/S0021889809051395 .,
https://hdl.handle.net/21.15107/rcub_dais_3428 .
56
57
58

Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327

Veselinović, Ljiljana; Karanović, Ljiljana; Bračko, Ines; Marković, Smilja; Ignjatović, Nenad; Uskoković, Dragan

(2010)

TY  - DATA
AU  - Veselinović, Ljiljana
AU  - Karanović, Ljiljana
AU  - Bračko, Ines
AU  - Marković, Smilja
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3440
AB  - Crystallographic Information File contains datablocks HAp, Co5HAp, Co10HAp, Co15HAp, Co20HAp
T2  - Journal of Applied Crystallography
T1  - Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_dais_3440
ER  - 
@misc{
author = "Veselinović, Ljiljana and Karanović, Ljiljana and Bračko, Ines and Marković, Smilja and Ignjatović, Nenad and Uskoković, Dragan",
year = "2010",
abstract = "Crystallographic Information File contains datablocks HAp, Co5HAp, Co10HAp, Co15HAp, Co20HAp",
journal = "Journal of Applied Crystallography",
title = "Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_dais_3440"
}
Veselinović, L., Karanović, L., Bračko, I., Marković, S., Ignjatović, N.,& Uskoković, D.. (2010). Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327. in Journal of Applied Crystallography, 43.
https://hdl.handle.net/21.15107/rcub_dais_3440
Veselinović L, Karanović L, Bračko I, Marković S, Ignjatović N, Uskoković D. Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327. in Journal of Applied Crystallography. 2010;43.
https://hdl.handle.net/21.15107/rcub_dais_3440 .
Veselinović, Ljiljana, Karanović, Ljiljana, Bračko, Ines, Marković, Smilja, Ignjatović, Nenad, Uskoković, Dragan, "Crystallographic Information for the article Veselinović, L., Karanović, L., Stojanović, Z., Bračko, I., Marković, S., Ignjatović, N., Uskoković, D., 2010. Crystal structure of cobalt-substituted calcium hydroxyapatite nanopowders prepared by hydrothermal processing. Journal of Applied Crystallography 43, 320–327" in Journal of Applied Crystallography, 43 (2010),
https://hdl.handle.net/21.15107/rcub_dais_3440 .

Structural characterization of synthetic and biological carbonated hydroxyapatite

Veselinović, Ljiljana; Lukić, Miodrag J.; Karanović, Ljiljana; Ignjatović, Nenad; Marković, Smilja; Uskoković, Dragan

(Belgrade : Institute of Technical Sciences of SASA, 2010)

TY  - CONF
AU  - Veselinović, Ljiljana
AU  - Lukić, Miodrag J.
AU  - Karanović, Ljiljana
AU  - Ignjatović, Nenad
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3451
AB  - It is well known that inorganic part of bones and teeth are impure form of hydroxyapatite, (HAp) Ca10(PO4)6(OH) 2. During the past few decades, great efforts have been invested to develop synthetic equivalent of natural apatite. The major difference of natural bioapatites from hydroxyapatites is in the presence of certain content of 2- CO3 ions in the structure. The presence of the 2- CO3 ions in the HAp structure influences the reactivity and stability. Therefore, the exact content of 2- CO3 ions as well as their arrangement in the structure is very important. The aim of our work is comparative analysis of the biological carbonated hydroxyapatite extracted from human alveolar bone and synthesized carbonated hydroxyapatite (BCHAp). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRPD data, and with transmission electron microscopy (TEM). Microstructure analysis showed anisotropic X-ray line broadening due to the small crystallite size (about 10 nm) as well as anisotropic growth of crystallites. The Raman spectroscopy confirmed the apatite structure and crystallinity.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
T1  - Structural characterization of synthetic and biological carbonated hydroxyapatite
SP  - 12
EP  - 12
UR  - https://hdl.handle.net/21.15107/rcub_dais_3451
ER  - 
@conference{
author = "Veselinović, Ljiljana and Lukić, Miodrag J. and Karanović, Ljiljana and Ignjatović, Nenad and Marković, Smilja and Uskoković, Dragan",
year = "2010",
abstract = "It is well known that inorganic part of bones and teeth are impure form of hydroxyapatite, (HAp) Ca10(PO4)6(OH) 2. During the past few decades, great efforts have been invested to develop synthetic equivalent of natural apatite. The major difference of natural bioapatites from hydroxyapatites is in the presence of certain content of 2- CO3 ions in the structure. The presence of the 2- CO3 ions in the HAp structure influences the reactivity and stability. Therefore, the exact content of 2- CO3 ions as well as their arrangement in the structure is very important. The aim of our work is comparative analysis of the biological carbonated hydroxyapatite extracted from human alveolar bone and synthesized carbonated hydroxyapatite (BCHAp). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRPD data, and with transmission electron microscopy (TEM). Microstructure analysis showed anisotropic X-ray line broadening due to the small crystallite size (about 10 nm) as well as anisotropic growth of crystallites. The Raman spectroscopy confirmed the apatite structure and crystallinity.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia",
title = "Structural characterization of synthetic and biological carbonated hydroxyapatite",
pages = "12-12",
url = "https://hdl.handle.net/21.15107/rcub_dais_3451"
}
Veselinović, L., Lukić, M. J., Karanović, L., Ignjatović, N., Marković, S.,& Uskoković, D.. (2010). Structural characterization of synthetic and biological carbonated hydroxyapatite. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 12-12.
https://hdl.handle.net/21.15107/rcub_dais_3451
Veselinović L, Lukić MJ, Karanović L, Ignjatović N, Marković S, Uskoković D. Structural characterization of synthetic and biological carbonated hydroxyapatite. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia. 2010;:12-12.
https://hdl.handle.net/21.15107/rcub_dais_3451 .
Veselinović, Ljiljana, Lukić, Miodrag J., Karanović, Ljiljana, Ignjatović, Nenad, Marković, Smilja, Uskoković, Dragan, "Structural characterization of synthetic and biological carbonated hydroxyapatite" in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia (2010):12-12,
https://hdl.handle.net/21.15107/rcub_dais_3451 .

Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy

Veselinović, Ljiljana; Karanović, Ljiljana; Marković, Smilja; Ignjatović, Nenad; Uskoković, Dragan

(2009)

TY  - CONF
AU  - Veselinović, Ljiljana
AU  - Karanović, Ljiljana
AU  - Marković, Smilja
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/267
AB  - Poster presented at the 11th Conference of the Materials Research Society of Serbia - YUCOMAT 2009, Herceg Novi, Montenegro, August 31 – September 4, 2009.
T1  - Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy
UR  - https://hdl.handle.net/21.15107/rcub_dais_267
ER  - 
@conference{
author = "Veselinović, Ljiljana and Karanović, Ljiljana and Marković, Smilja and Ignjatović, Nenad and Uskoković, Dragan",
year = "2009",
abstract = "Poster presented at the 11th Conference of the Materials Research Society of Serbia - YUCOMAT 2009, Herceg Novi, Montenegro, August 31 – September 4, 2009.",
title = "Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy",
url = "https://hdl.handle.net/21.15107/rcub_dais_267"
}
Veselinović, L., Karanović, L., Marković, S., Ignjatović, N.,& Uskoković, D.. (2009). Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy. .
https://hdl.handle.net/21.15107/rcub_dais_267
Veselinović L, Karanović L, Marković S, Ignjatović N, Uskoković D. Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy. 2009;.
https://hdl.handle.net/21.15107/rcub_dais_267 .
Veselinović, Ljiljana, Karanović, Ljiljana, Marković, Smilja, Ignjatović, Nenad, Uskoković, Dragan, "Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy" (2009),
https://hdl.handle.net/21.15107/rcub_dais_267 .

Mechanochemistry of titanium oxides

Veljković, Ivana; Poleti, Dejan; Zdujić, Miodrag; Karanović, Ljiljana

(Belgrade : Association of the Chemical Engineers of Serbia, 2009)

TY  - JOUR
AU  - Veljković, Ivana
AU  - Poleti, Dejan
AU  - Zdujić, Miodrag
AU  - Karanović, Ljiljana
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/3458
AB  - Mechanochemistry represents an alternative route in synthesis of nanomaterials. Mechanochemical routes are attractive because of their simplicity, flexibility, and ability to prepare materials by solid state reactions at room temperature. The aim of this work is the mechanochemical synthesis of nanostructured titanium oxides of different composition starting from mixtures of Ti and TiO2, TiO and TiO2 or Ti 2O3 and TiO2. Emphasis is on the Magneli phases Ti4O7 and Ti5O9 because their mixture is commercially known as EBONEX material. The materials prepared were characterized by XRPD, TG/DTA analysis, SEM and optical microscopy. Titanium monoxide and several Magneli oxides, Ti4O7, Ti 5O9 and Ti6O11, are successsfully prepared. The results are very interesting because the EBONEX materials were prepared at lower than usual temperature, which would decrease the effective cost of production.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Mechanochemistry of titanium oxides
SP  - 247
EP  - 251
VL  - 63
IS  - 3
DO  - 10.2298/HEMIND0903247V
UR  - https://hdl.handle.net/21.15107/rcub_dais_3458
ER  - 
@article{
author = "Veljković, Ivana and Poleti, Dejan and Zdujić, Miodrag and Karanović, Ljiljana",
year = "2009",
abstract = "Mechanochemistry represents an alternative route in synthesis of nanomaterials. Mechanochemical routes are attractive because of their simplicity, flexibility, and ability to prepare materials by solid state reactions at room temperature. The aim of this work is the mechanochemical synthesis of nanostructured titanium oxides of different composition starting from mixtures of Ti and TiO2, TiO and TiO2 or Ti 2O3 and TiO2. Emphasis is on the Magneli phases Ti4O7 and Ti5O9 because their mixture is commercially known as EBONEX material. The materials prepared were characterized by XRPD, TG/DTA analysis, SEM and optical microscopy. Titanium monoxide and several Magneli oxides, Ti4O7, Ti 5O9 and Ti6O11, are successsfully prepared. The results are very interesting because the EBONEX materials were prepared at lower than usual temperature, which would decrease the effective cost of production.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Mechanochemistry of titanium oxides",
pages = "247-251",
volume = "63",
number = "3",
doi = "10.2298/HEMIND0903247V",
url = "https://hdl.handle.net/21.15107/rcub_dais_3458"
}
Veljković, I., Poleti, D., Zdujić, M.,& Karanović, L.. (2009). Mechanochemistry of titanium oxides. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 63(3), 247-251.
https://doi.org/10.2298/HEMIND0903247V
https://hdl.handle.net/21.15107/rcub_dais_3458
Veljković I, Poleti D, Zdujić M, Karanović L. Mechanochemistry of titanium oxides. in Hemijska industrija. 2009;63(3):247-251.
doi:10.2298/HEMIND0903247V
https://hdl.handle.net/21.15107/rcub_dais_3458 .
Veljković, Ivana, Poleti, Dejan, Zdujić, Miodrag, Karanović, Ljiljana, "Mechanochemistry of titanium oxides" in Hemijska industrija, 63, no. 3 (2009):247-251,
https://doi.org/10.2298/HEMIND0903247V .,
https://hdl.handle.net/21.15107/rcub_dais_3458 .
1
1
1

Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound

Zdujić, Miodrag; Jovalekić, Čedomir; Poleti, Dejan; Veljković, Ivana; Karanović, Ljiljana

(Elsevier, 2009)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Jovalekić, Čedomir
AU  - Poleti, Dejan
AU  - Veljković, Ivana
AU  - Karanović, Ljiljana
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/3454
AB  - Concurrent milling of Bi4Ti3O12 was carried out in a planetary ball mill with hardened-steel 13 or 6 mm diameter balls with a goal to investigate how the system responds to the constrains imposed by milling. Milling intensity for various milling parameters was derived from the electrical power measurement. The reverse amorphous ↔ crystalline phase transition induced by milling is governed by impact energy and frequency. Below a certain threshold value of impact energy crystallization does not occur, whereas a higher impact frequency accelerates amorphization. Mechanochemical reactions are predominantly discrete processes, which occur at the moment of impact. © 2009 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Letters
T1  - Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound
SP  - 2542
EP  - 2544
VL  - 63
IS  - 29
DO  - 10.1016/j.matlet.2009.08.055
UR  - https://hdl.handle.net/21.15107/rcub_dais_3454
ER  - 
@article{
author = "Zdujić, Miodrag and Jovalekić, Čedomir and Poleti, Dejan and Veljković, Ivana and Karanović, Ljiljana",
year = "2009",
abstract = "Concurrent milling of Bi4Ti3O12 was carried out in a planetary ball mill with hardened-steel 13 or 6 mm diameter balls with a goal to investigate how the system responds to the constrains imposed by milling. Milling intensity for various milling parameters was derived from the electrical power measurement. The reverse amorphous ↔ crystalline phase transition induced by milling is governed by impact energy and frequency. Below a certain threshold value of impact energy crystallization does not occur, whereas a higher impact frequency accelerates amorphization. Mechanochemical reactions are predominantly discrete processes, which occur at the moment of impact. © 2009 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound",
pages = "2542-2544",
volume = "63",
number = "29",
doi = "10.1016/j.matlet.2009.08.055",
url = "https://hdl.handle.net/21.15107/rcub_dais_3454"
}
Zdujić, M., Jovalekić, Č., Poleti, D., Veljković, I.,& Karanović, L.. (2009). Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound. in Materials Letters
Elsevier., 63(29), 2542-2544.
https://doi.org/10.1016/j.matlet.2009.08.055
https://hdl.handle.net/21.15107/rcub_dais_3454
Zdujić M, Jovalekić Č, Poleti D, Veljković I, Karanović L. Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound. in Materials Letters. 2009;63(29):2542-2544.
doi:10.1016/j.matlet.2009.08.055
https://hdl.handle.net/21.15107/rcub_dais_3454 .
Zdujić, Miodrag, Jovalekić, Čedomir, Poleti, Dejan, Veljković, Ivana, Karanović, Ljiljana, "Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound" in Materials Letters, 63, no. 29 (2009):2542-2544,
https://doi.org/10.1016/j.matlet.2009.08.055 .,
https://hdl.handle.net/21.15107/rcub_dais_3454 .
3
2
3

Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2

Zdujić, Miodrag; Poleti, Dejan; Jovalekić, Čedomir; Karanović, Ljiljana

(Belgrade : Serbian Chemical Society, 2009)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Poleti, Dejan
AU  - Jovalekić, Čedomir
AU  - Karanović, Ljiljana
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/174
AB  - A powder mixture of α-Bi2O3 and HfO2, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill under air, using zirconium oxide vials and balls as the milling medium. After 50 h of milling, the mechanochemical reaction led to the formation of a nanocrystalline δ-Bi2O3 phase (fluorite-type solid solution Bi0.78Hf0.59Zr0.63O3.61), with a crystallite size of 20 nm. The mechanochemical reaction started at a very beginning of milling accompanied by an accumulation of ZrO2 arising from the milling tools. The samples prepared after various milling times were characterized by X-ray powder diffraction and DSC analysis. The electrical properties of the as-milled and pressed Bi0.78Hf0.59Zr0.63O3.61 powder were studied using impedance spectroscopy in the temperature range from 100 to 700°C under air. The electrical conductivity was determined to be 9.43×10-6 and 0.080 S cm-1 for the temperatures of 300 and 700°C, respectively.
AB  - Smeša prahova α-Bi2O3 i HfO2 u molarnom odnosu 2:3 mehanohemijski je tretirana u planetarnom mlinu u atmosferi vazduha, koristeći cirkonijumske posude i kuglice kao medijum za mlevenje. Posle 50 h mlevenja, mehanohemijska reakcija dovodi do stvaranja nanokristalne δ-Bi2O3 faze (čvrsti rastvor fluoritske strukture Bi0,78Hf0,59Zr0,63O3,61), veličine kristalita 20 nm. Mehanohemijska reakcija otpočinje u samom početku mlevenja i praćena je akumulacijum ZrO2 koji potiče od medijuma za mlevenje. Uzorci dobijeni posle različitih vremena mlevenja karakterisani su rendgenskom strukturnom i termijskom analizom. Električna svojstva mlevenih i presovanih Bi0,78Hf0,59Zr0,63O3,61 prahova ispitivana su impedansnom spektroskopijom u temperaturnom opsegu od 100 do 700°C. Dobijena električna provodnost je 9,43·10-6 i 0,080 S cm-1 za temperaturu 300 i 700°C, redom.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2
SP  - 1401
EP  - 1411
VL  - 74
IS  - 12
DO  - 10.2298/JSC0912401Z
UR  - https://hdl.handle.net/21.15107/rcub_dais_174
ER  - 
@article{
author = "Zdujić, Miodrag and Poleti, Dejan and Jovalekić, Čedomir and Karanović, Ljiljana",
year = "2009",
abstract = "A powder mixture of α-Bi2O3 and HfO2, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill under air, using zirconium oxide vials and balls as the milling medium. After 50 h of milling, the mechanochemical reaction led to the formation of a nanocrystalline δ-Bi2O3 phase (fluorite-type solid solution Bi0.78Hf0.59Zr0.63O3.61), with a crystallite size of 20 nm. The mechanochemical reaction started at a very beginning of milling accompanied by an accumulation of ZrO2 arising from the milling tools. The samples prepared after various milling times were characterized by X-ray powder diffraction and DSC analysis. The electrical properties of the as-milled and pressed Bi0.78Hf0.59Zr0.63O3.61 powder were studied using impedance spectroscopy in the temperature range from 100 to 700°C under air. The electrical conductivity was determined to be 9.43×10-6 and 0.080 S cm-1 for the temperatures of 300 and 700°C, respectively., Smeša prahova α-Bi2O3 i HfO2 u molarnom odnosu 2:3 mehanohemijski je tretirana u planetarnom mlinu u atmosferi vazduha, koristeći cirkonijumske posude i kuglice kao medijum za mlevenje. Posle 50 h mlevenja, mehanohemijska reakcija dovodi do stvaranja nanokristalne δ-Bi2O3 faze (čvrsti rastvor fluoritske strukture Bi0,78Hf0,59Zr0,63O3,61), veličine kristalita 20 nm. Mehanohemijska reakcija otpočinje u samom početku mlevenja i praćena je akumulacijum ZrO2 koji potiče od medijuma za mlevenje. Uzorci dobijeni posle različitih vremena mlevenja karakterisani su rendgenskom strukturnom i termijskom analizom. Električna svojstva mlevenih i presovanih Bi0,78Hf0,59Zr0,63O3,61 prahova ispitivana su impedansnom spektroskopijom u temperaturnom opsegu od 100 do 700°C. Dobijena električna provodnost je 9,43·10-6 i 0,080 S cm-1 za temperaturu 300 i 700°C, redom.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2",
pages = "1401-1411",
volume = "74",
number = "12",
doi = "10.2298/JSC0912401Z",
url = "https://hdl.handle.net/21.15107/rcub_dais_174"
}
Zdujić, M., Poleti, D., Jovalekić, Č.,& Karanović, L.. (2009). Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 74(12), 1401-1411.
https://doi.org/10.2298/JSC0912401Z
https://hdl.handle.net/21.15107/rcub_dais_174
Zdujić M, Poleti D, Jovalekić Č, Karanović L. Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2. in Journal of the Serbian Chemical Society. 2009;74(12):1401-1411.
doi:10.2298/JSC0912401Z
https://hdl.handle.net/21.15107/rcub_dais_174 .
Zdujić, Miodrag, Poleti, Dejan, Jovalekić, Čedomir, Karanović, Ljiljana, "Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2" in Journal of the Serbian Chemical Society, 74, no. 12 (2009):1401-1411,
https://doi.org/10.2298/JSC0912401Z .,
https://hdl.handle.net/21.15107/rcub_dais_174 .
8
10
10

Structural and electrical properties of the 2Bi2O3·3ZrO2 system

Jovalekić, Čedomir; Zdujić, Miodrag; Poleti, Dejan; Karanović, Ljiljana; Mitrić, Miodrag

(2008)

TY  - JOUR
AU  - Jovalekić, Čedomir
AU  - Zdujić, Miodrag
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Mitrić, Miodrag
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3582
AB  - Powder mixtures of α-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The prepared samples were characterized by X-ray powder diffraction, differential scanning calorimetry (DSC), electrical measurements, as well as scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The mechanochemical reaction leads to the gradual formation of a nanocrystalline phase, which resembles δ-Bi2O3, a high-temperature Bi2O3 polymorph. Isothermal sintering in air at a temperature of 820 °C for 24 h followed by quenching to room temperature yielded a mixture of ZrO2-stabilized β-Bi2O3 and m-ZrO2 phases, whereas in slowly cooled products, the complete separation of the initial α-Bi2O3 and m-ZrO2 constituents was observed. The dielectric permittivity of the sintered samples significantly depended on the temperature. The sintered and quenched samples exhibited a hysteresis dependence of the dielectric shift, showing that the ZrO2-doped β-Bi2O3 phase possess ferroelectric properties, which were detected for the first time. This fact, together with Rietveld refinement of the β-Bi2O3/m-ZrO2 mixture based on neutron powder diffraction data showed that ZrO2-doped β-Bi2O3 has a non-centrosymmetric structure with P over(4, -) 21 c as the true space group. The ZrO2 content in the doped β-Bi2O3 and the crystal chemical reasons for the stabilization of the β-Bi2O3 phase by the addition of m-ZrO2 are discussed. © 2008 Elsevier Inc. All rights reserved.
T2  - Journal of Solid State Chemistry
T1  - Structural and electrical properties of the 2Bi2O3·3ZrO2 system
SP  - 1321
EP  - 1329
VL  - 181
IS  - 6
DO  - 10.1016/j.jssc.2008.02.038
UR  - https://hdl.handle.net/21.15107/rcub_dais_3582
ER  - 
@article{
author = "Jovalekić, Čedomir and Zdujić, Miodrag and Poleti, Dejan and Karanović, Ljiljana and Mitrić, Miodrag",
year = "2008",
abstract = "Powder mixtures of α-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The prepared samples were characterized by X-ray powder diffraction, differential scanning calorimetry (DSC), electrical measurements, as well as scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The mechanochemical reaction leads to the gradual formation of a nanocrystalline phase, which resembles δ-Bi2O3, a high-temperature Bi2O3 polymorph. Isothermal sintering in air at a temperature of 820 °C for 24 h followed by quenching to room temperature yielded a mixture of ZrO2-stabilized β-Bi2O3 and m-ZrO2 phases, whereas in slowly cooled products, the complete separation of the initial α-Bi2O3 and m-ZrO2 constituents was observed. The dielectric permittivity of the sintered samples significantly depended on the temperature. The sintered and quenched samples exhibited a hysteresis dependence of the dielectric shift, showing that the ZrO2-doped β-Bi2O3 phase possess ferroelectric properties, which were detected for the first time. This fact, together with Rietveld refinement of the β-Bi2O3/m-ZrO2 mixture based on neutron powder diffraction data showed that ZrO2-doped β-Bi2O3 has a non-centrosymmetric structure with P over(4, -) 21 c as the true space group. The ZrO2 content in the doped β-Bi2O3 and the crystal chemical reasons for the stabilization of the β-Bi2O3 phase by the addition of m-ZrO2 are discussed. © 2008 Elsevier Inc. All rights reserved.",
journal = "Journal of Solid State Chemistry",
title = "Structural and electrical properties of the 2Bi2O3·3ZrO2 system",
pages = "1321-1329",
volume = "181",
number = "6",
doi = "10.1016/j.jssc.2008.02.038",
url = "https://hdl.handle.net/21.15107/rcub_dais_3582"
}
Jovalekić, Č., Zdujić, M., Poleti, D., Karanović, L.,& Mitrić, M.. (2008). Structural and electrical properties of the 2Bi2O3·3ZrO2 system. in Journal of Solid State Chemistry, 181(6), 1321-1329.
https://doi.org/10.1016/j.jssc.2008.02.038
https://hdl.handle.net/21.15107/rcub_dais_3582
Jovalekić Č, Zdujić M, Poleti D, Karanović L, Mitrić M. Structural and electrical properties of the 2Bi2O3·3ZrO2 system. in Journal of Solid State Chemistry. 2008;181(6):1321-1329.
doi:10.1016/j.jssc.2008.02.038
https://hdl.handle.net/21.15107/rcub_dais_3582 .
Jovalekić, Čedomir, Zdujić, Miodrag, Poleti, Dejan, Karanović, Ljiljana, Mitrić, Miodrag, "Structural and electrical properties of the 2Bi2O3·3ZrO2 system" in Journal of Solid State Chemistry, 181, no. 6 (2008):1321-1329,
https://doi.org/10.1016/j.jssc.2008.02.038 .,
https://hdl.handle.net/21.15107/rcub_dais_3582 .
21
21
24

LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation

Petrović, Srđan; Terlecki Baričević, Ana; Karanović, Ljiljana; Kirilov-Stefanov, Plamen; Zdujić, Miodrag; Dondur, Vera; Paneva, D.; Mitov, I.; Rakić, V.

(Elsevier, 2008)

TY  - JOUR
AU  - Petrović, Srđan
AU  - Terlecki Baričević, Ana
AU  - Karanović, Ljiljana
AU  - Kirilov-Stefanov, Plamen
AU  - Zdujić, Miodrag
AU  - Dondur, Vera
AU  - Paneva, D.
AU  - Mitov, I.
AU  - Rakić, V.
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3586
AB  - Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) of constituent metal oxides, at 1000 °C in air. In addition, two closely related perovskites LaFeO3 (LF) and LaTi0.5Mg0.5O3 (TM (50:50)) were synthesized in the similar way. Using MCA method, perovskites were obtained in rather short time and at room temperature. The samples were characterized by X-ray powder diffraction (XRPD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), temperature programmed desorption of oxygen (TPD), Mössbauer spectroscopy, BET surface area measurements and tested in methane deep oxidation. According to XRPD analysis all synthesized samples are almost single perovskite phase, with trace amounts of La2O3 phase. Data of Mössbauer spectroscopy identify Fe3+ in octahedral coordination. The activity of perovskite in methane deep oxidation increases in the order TM (50:50) < MF series < TF series. Higher activity of TF samples in respect to MF with similar Fe content can be related to the structural characteristic, mainly to the presence of predominantly most labile oxygen species evidenced by TPD at lowest temperature of oxygen evaluation. In used experimental conditions, the Fe substituted perovskite are thermal stable up to the temperature of 850 °C. The stability of Fe active sites is probably the most important parameter responsible for thermal stability of perovskite, but the atomic surface composition also should be taken into account. © 2007 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Applied Catalysis B: Environmental
T1  - LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation
SP  - 186
EP  - 198
VL  - 79
IS  - 2
DO  - 10.1016/j.apcatb.2007.10.022
UR  - https://hdl.handle.net/21.15107/rcub_dais_3586
ER  - 
@article{
author = "Petrović, Srđan and Terlecki Baričević, Ana and Karanović, Ljiljana and Kirilov-Stefanov, Plamen and Zdujić, Miodrag and Dondur, Vera and Paneva, D. and Mitov, I. and Rakić, V.",
year = "2008",
abstract = "Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) of constituent metal oxides, at 1000 °C in air. In addition, two closely related perovskites LaFeO3 (LF) and LaTi0.5Mg0.5O3 (TM (50:50)) were synthesized in the similar way. Using MCA method, perovskites were obtained in rather short time and at room temperature. The samples were characterized by X-ray powder diffraction (XRPD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), temperature programmed desorption of oxygen (TPD), Mössbauer spectroscopy, BET surface area measurements and tested in methane deep oxidation. According to XRPD analysis all synthesized samples are almost single perovskite phase, with trace amounts of La2O3 phase. Data of Mössbauer spectroscopy identify Fe3+ in octahedral coordination. The activity of perovskite in methane deep oxidation increases in the order TM (50:50) < MF series < TF series. Higher activity of TF samples in respect to MF with similar Fe content can be related to the structural characteristic, mainly to the presence of predominantly most labile oxygen species evidenced by TPD at lowest temperature of oxygen evaluation. In used experimental conditions, the Fe substituted perovskite are thermal stable up to the temperature of 850 °C. The stability of Fe active sites is probably the most important parameter responsible for thermal stability of perovskite, but the atomic surface composition also should be taken into account. © 2007 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Applied Catalysis B: Environmental",
title = "LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation",
pages = "186-198",
volume = "79",
number = "2",
doi = "10.1016/j.apcatb.2007.10.022",
url = "https://hdl.handle.net/21.15107/rcub_dais_3586"
}
Petrović, S., Terlecki Baričević, A., Karanović, L., Kirilov-Stefanov, P., Zdujić, M., Dondur, V., Paneva, D., Mitov, I.,& Rakić, V.. (2008). LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation. in Applied Catalysis B: Environmental
Elsevier., 79(2), 186-198.
https://doi.org/10.1016/j.apcatb.2007.10.022
https://hdl.handle.net/21.15107/rcub_dais_3586
Petrović S, Terlecki Baričević A, Karanović L, Kirilov-Stefanov P, Zdujić M, Dondur V, Paneva D, Mitov I, Rakić V. LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation. in Applied Catalysis B: Environmental. 2008;79(2):186-198.
doi:10.1016/j.apcatb.2007.10.022
https://hdl.handle.net/21.15107/rcub_dais_3586 .
Petrović, Srđan, Terlecki Baričević, Ana, Karanović, Ljiljana, Kirilov-Stefanov, Plamen, Zdujić, Miodrag, Dondur, Vera, Paneva, D., Mitov, I., Rakić, V., "LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation" in Applied Catalysis B: Environmental, 79, no. 2 (2008):186-198,
https://doi.org/10.1016/j.apcatb.2007.10.022 .,
https://hdl.handle.net/21.15107/rcub_dais_3586 .
59
39
70

Mechanochemical synthesis of nanocrystalline titanium monoxide

Veljković, Ivana; Poleti, Dejan; Zdujić, Miodrag; Karanović, Ljiljana; Jovalekić, Čedomir

(Elsevier, 2008)

TY  - JOUR
AU  - Veljković, Ivana
AU  - Poleti, Dejan
AU  - Zdujić, Miodrag
AU  - Karanović, Ljiljana
AU  - Jovalekić, Čedomir
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3580
AB  - Nanocrystalline cubic titanium monoxide, TiOx (0.92 < x < 1.19), with mean crystallite size of ≈ 6 nm, was synthesized by mechanochemical treatment of Ti and TiO2 (rutile) powder mixtures with molar ratios of 1:1, 1.10:1 and 1.25:1. The mechanochemical solid state reaction in a high-energy planetary ball mill was completed for 2 h in either air or argon atmosphere. During heating in vacuum at 900 and 1000 °C for 24 h, nanocrystalline TiOx transforms to a well-crystallized, cubic or monoclinic TiOx. The materials prepared were characterized by XRPD, TGA/DSC and SEM/EDS analysis. © 2008 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Letters
T1  - Mechanochemical synthesis of nanocrystalline titanium monoxide
SP  - 2769
EP  - 2771
VL  - 62
IS  - 17-18
DO  - 10.1016/j.matlet.2008.01.039
UR  - https://hdl.handle.net/21.15107/rcub_dais_3580
ER  - 
@article{
author = "Veljković, Ivana and Poleti, Dejan and Zdujić, Miodrag and Karanović, Ljiljana and Jovalekić, Čedomir",
year = "2008",
abstract = "Nanocrystalline cubic titanium monoxide, TiOx (0.92 < x < 1.19), with mean crystallite size of ≈ 6 nm, was synthesized by mechanochemical treatment of Ti and TiO2 (rutile) powder mixtures with molar ratios of 1:1, 1.10:1 and 1.25:1. The mechanochemical solid state reaction in a high-energy planetary ball mill was completed for 2 h in either air or argon atmosphere. During heating in vacuum at 900 and 1000 °C for 24 h, nanocrystalline TiOx transforms to a well-crystallized, cubic or monoclinic TiOx. The materials prepared were characterized by XRPD, TGA/DSC and SEM/EDS analysis. © 2008 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Mechanochemical synthesis of nanocrystalline titanium monoxide",
pages = "2769-2771",
volume = "62",
number = "17-18",
doi = "10.1016/j.matlet.2008.01.039",
url = "https://hdl.handle.net/21.15107/rcub_dais_3580"
}
Veljković, I., Poleti, D., Zdujić, M., Karanović, L.,& Jovalekić, Č.. (2008). Mechanochemical synthesis of nanocrystalline titanium monoxide. in Materials Letters
Elsevier., 62(17-18), 2769-2771.
https://doi.org/10.1016/j.matlet.2008.01.039
https://hdl.handle.net/21.15107/rcub_dais_3580
Veljković I, Poleti D, Zdujić M, Karanović L, Jovalekić Č. Mechanochemical synthesis of nanocrystalline titanium monoxide. in Materials Letters. 2008;62(17-18):2769-2771.
doi:10.1016/j.matlet.2008.01.039
https://hdl.handle.net/21.15107/rcub_dais_3580 .
Veljković, Ivana, Poleti, Dejan, Zdujić, Miodrag, Karanović, Ljiljana, Jovalekić, Čedomir, "Mechanochemical synthesis of nanocrystalline titanium monoxide" in Materials Letters, 62, no. 17-18 (2008):2769-2771,
https://doi.org/10.1016/j.matlet.2008.01.039 .,
https://hdl.handle.net/21.15107/rcub_dais_3580 .
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Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12

Zdujić, Miodrag; Jovalekić, Čedomir; Veljković, Ivana; Poleti, Dejan; Karanović, Ljiljana

(2008)

TY  - CONF
AU  - Zdujić, Miodrag
AU  - Jovalekić, Čedomir
AU  - Veljković, Ivana
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/302
AB  - Poster presented at the XLVI Savetovanje srpskog hemijskog društva, Beograd, 29. mart (21. februar) 2008
T1  - Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12
UR  - https://hdl.handle.net/21.15107/rcub_dais_302
ER  - 
@conference{
author = "Zdujić, Miodrag and Jovalekić, Čedomir and Veljković, Ivana and Poleti, Dejan and Karanović, Ljiljana",
year = "2008",
abstract = "Poster presented at the XLVI Savetovanje srpskog hemijskog društva, Beograd, 29. mart (21. februar) 2008",
title = "Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12",
url = "https://hdl.handle.net/21.15107/rcub_dais_302"
}
Zdujić, M., Jovalekić, Č., Veljković, I., Poleti, D.,& Karanović, L.. (2008). Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12. .
https://hdl.handle.net/21.15107/rcub_dais_302
Zdujić M, Jovalekić Č, Veljković I, Poleti D, Karanović L. Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12. 2008;.
https://hdl.handle.net/21.15107/rcub_dais_302 .
Zdujić, Miodrag, Jovalekić, Čedomir, Veljković, Ivana, Poleti, Dejan, Karanović, Ljiljana, "Uticaj parametara mlevenja na odnos amorfne i kristalne faze u jedinjenju Bi4Ti3O12" (2008),
https://hdl.handle.net/21.15107/rcub_dais_302 .

Catalytic combustion of methane over Pd containing perovskite type oxides

Petrović, Srđan; Karanović, Ljiljana; Stefanov, Plamen K.; Zdujić, Miodrag; Terlecki Baričević, Ana

(Elsevier Science Bv, Amsterdam, 2005)

TY  - JOUR
AU  - Petrović, Srđan
AU  - Karanović, Ljiljana
AU  - Stefanov, Plamen K.
AU  - Zdujić, Miodrag
AU  - Terlecki Baričević, Ana
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/4838
AB  - The mixed perovskite type oxides with nominal formula LaTi0.5Mg0.5-xPdxO3, (0  LT = x  LT = 0.10) were prepared by anneling the ethanol solution of precursor in nitrogen flow at 1200 degrees C. X-ray powder diffraction (XRPD) analysis shows that the orthorhombic perovskite structure was found in all investigated samples. However, at least a part of palladium is not incorporated into perovskite structure and remains as separate phase, which is reduced to Pd-0 at 1200 degrees C. X-ray photoelectron spectroscopy (XPS) reveled the presence of Pd2+, which indicate a reoxidation of Pd-0 in the surface layers during cooling. The Pd content in the samples has a small influence on the methane oxidation activity below the temperature of 500 degrees C. At temperatures higher than 500 C, the methane oxidation activity of the sample with x = 0.05 exceeds the activity of the sample with x = 0.10. The sharp increase of methane oxidation activity over the sample with lower content of palladium at about 500 degrees C was ascribed to the higher dispersion of PdO and Pd-0 phases. Thus, the higher contribution of lattice oxygen and possible local change in oxidation state of palladium can be a reason for the enhanced activity. Contrary to the supported Pd/Al2O3 catalyst, the incorporation of palladium into perovskite matrix and interaction of PdO-Pd-0 benefits the activity of smaller particles at higher reaction temperatures.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Catalysis B: Environmental
T1  - Catalytic combustion of methane over Pd containing perovskite type oxides
SP  - 133
EP  - 141
VL  - 58
IS  - 1-2
DO  - 10.1016/j.apcatb.2004.11.020
UR  - https://hdl.handle.net/21.15107/rcub_dais_4838
ER  - 
@article{
author = "Petrović, Srđan and Karanović, Ljiljana and Stefanov, Plamen K. and Zdujić, Miodrag and Terlecki Baričević, Ana",
year = "2005",
abstract = "The mixed perovskite type oxides with nominal formula LaTi0.5Mg0.5-xPdxO3, (0  LT = x  LT = 0.10) were prepared by anneling the ethanol solution of precursor in nitrogen flow at 1200 degrees C. X-ray powder diffraction (XRPD) analysis shows that the orthorhombic perovskite structure was found in all investigated samples. However, at least a part of palladium is not incorporated into perovskite structure and remains as separate phase, which is reduced to Pd-0 at 1200 degrees C. X-ray photoelectron spectroscopy (XPS) reveled the presence of Pd2+, which indicate a reoxidation of Pd-0 in the surface layers during cooling. The Pd content in the samples has a small influence on the methane oxidation activity below the temperature of 500 degrees C. At temperatures higher than 500 C, the methane oxidation activity of the sample with x = 0.05 exceeds the activity of the sample with x = 0.10. The sharp increase of methane oxidation activity over the sample with lower content of palladium at about 500 degrees C was ascribed to the higher dispersion of PdO and Pd-0 phases. Thus, the higher contribution of lattice oxygen and possible local change in oxidation state of palladium can be a reason for the enhanced activity. Contrary to the supported Pd/Al2O3 catalyst, the incorporation of palladium into perovskite matrix and interaction of PdO-Pd-0 benefits the activity of smaller particles at higher reaction temperatures.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Catalysis B: Environmental",
title = "Catalytic combustion of methane over Pd containing perovskite type oxides",
pages = "133-141",
volume = "58",
number = "1-2",
doi = "10.1016/j.apcatb.2004.11.020",
url = "https://hdl.handle.net/21.15107/rcub_dais_4838"
}
Petrović, S., Karanović, L., Stefanov, P. K., Zdujić, M.,& Terlecki Baričević, A.. (2005). Catalytic combustion of methane over Pd containing perovskite type oxides. in Applied Catalysis B: Environmental
Elsevier Science Bv, Amsterdam., 58(1-2), 133-141.
https://doi.org/10.1016/j.apcatb.2004.11.020
https://hdl.handle.net/21.15107/rcub_dais_4838
Petrović S, Karanović L, Stefanov PK, Zdujić M, Terlecki Baričević A. Catalytic combustion of methane over Pd containing perovskite type oxides. in Applied Catalysis B: Environmental. 2005;58(1-2):133-141.
doi:10.1016/j.apcatb.2004.11.020
https://hdl.handle.net/21.15107/rcub_dais_4838 .
Petrović, Srđan, Karanović, Ljiljana, Stefanov, Plamen K., Zdujić, Miodrag, Terlecki Baričević, Ana, "Catalytic combustion of methane over Pd containing perovskite type oxides" in Applied Catalysis B: Environmental, 58, no. 1-2 (2005):133-141,
https://doi.org/10.1016/j.apcatb.2004.11.020 .,
https://hdl.handle.net/21.15107/rcub_dais_4838 .
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39
42

ZnO varistors prepared by direct mixing of constituent phases

Branković, Zorica; Milošević, Olivera; Poleti, Dejan; Karanović, Ljiljana; Uskoković, Dragan

(Sendai : Japan Institute of Metals, 2000)

TY  - JOUR
AU  - Branković, Zorica
AU  - Milošević, Olivera
AU  - Poleti, Dejan
AU  - Karanović, Ljiljana
AU  - Uskoković, Dragan
PY  - 2000
UR  - https://dais.sanu.ac.rs/123456789/3865
AB  - ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (approximately 0.01 A/m2), were obtained by a method referred to as `direct mixing of constituent phases'. The method is based on sintering of a mixture of the constituent phases with the following compositions: ZnO phase uniformly doped with Co2+ and Mn2+; intergranular phase: γ-Bi2O3 stabilized with Mn2+ or Zn2+; spinel phase: Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4. As proved, the obtained varistors are composed of the same phases as those introduced into the system. The influence of composition as well as milling and sintering parameters on the varistor characteristics were investigated. Some varistor powder mixtures were intensively milled before sintering. As a result, high density ceramics with highly homogeneous microstructure were obtained after sintering.
PB  - Sendai : Japan Institute of Metals
T2  - Materials Transactions, JIM
T1  - ZnO varistors prepared by direct mixing of constituent phases
SP  - 1226
EP  - 1231
VL  - 41
IS  - 9
DO  - 10.2320/matertrans1989.41.1226
UR  - https://hdl.handle.net/21.15107/rcub_dais_3865
ER  - 
@article{
author = "Branković, Zorica and Milošević, Olivera and Poleti, Dejan and Karanović, Ljiljana and Uskoković, Dragan",
year = "2000",
abstract = "ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (approximately 0.01 A/m2), were obtained by a method referred to as `direct mixing of constituent phases'. The method is based on sintering of a mixture of the constituent phases with the following compositions: ZnO phase uniformly doped with Co2+ and Mn2+; intergranular phase: γ-Bi2O3 stabilized with Mn2+ or Zn2+; spinel phase: Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4. As proved, the obtained varistors are composed of the same phases as those introduced into the system. The influence of composition as well as milling and sintering parameters on the varistor characteristics were investigated. Some varistor powder mixtures were intensively milled before sintering. As a result, high density ceramics with highly homogeneous microstructure were obtained after sintering.",
publisher = "Sendai : Japan Institute of Metals",
journal = "Materials Transactions, JIM",
title = "ZnO varistors prepared by direct mixing of constituent phases",
pages = "1226-1231",
volume = "41",
number = "9",
doi = "10.2320/matertrans1989.41.1226",
url = "https://hdl.handle.net/21.15107/rcub_dais_3865"
}
Branković, Z., Milošević, O., Poleti, D., Karanović, L.,& Uskoković, D.. (2000). ZnO varistors prepared by direct mixing of constituent phases. in Materials Transactions, JIM
Sendai : Japan Institute of Metals., 41(9), 1226-1231.
https://doi.org/10.2320/matertrans1989.41.1226
https://hdl.handle.net/21.15107/rcub_dais_3865
Branković Z, Milošević O, Poleti D, Karanović L, Uskoković D. ZnO varistors prepared by direct mixing of constituent phases. in Materials Transactions, JIM. 2000;41(9):1226-1231.
doi:10.2320/matertrans1989.41.1226
https://hdl.handle.net/21.15107/rcub_dais_3865 .
Branković, Zorica, Milošević, Olivera, Poleti, Dejan, Karanović, Ljiljana, Uskoković, Dragan, "ZnO varistors prepared by direct mixing of constituent phases" in Materials Transactions, JIM, 41, no. 9 (2000):1226-1231,
https://doi.org/10.2320/matertrans1989.41.1226 .,
https://hdl.handle.net/21.15107/rcub_dais_3865 .
11
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14