TY  - JOUR
AU  - Marinković Stanojević, Zorica
AU  - Mančić, Lidija
AU  - Srećković, Tatjana
AU  - Stojanović, B.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/363
AB  - A powder mixture of Bi2O3 and Fe2O3 was mechanically treated in a planetary ball mill in an air from 30 to 720 minutes. It was shown that the mechanochemical formation of BiFeO3 (BFO) phase was initiated after 60 min and its amount increased gradually with increasing milling time. A detailed XRPD structural analysis is realized by Rietveld’s structure refinement method. The resulting lattice parameters, relative phase abundances, crystallite sizes and crystal lattice microstrains were determined as a function of milling time. Microstructural analysis showed a little difference in morphology of obtained powders. The primary particles, irregular in shape and smaller than 400 nm are observed clearly, although they have assembled together to form agglomerates with varying size and morphology. Dense BFO ceramics were prepared by conventional solid-state reaction at the temperature of 810ºC for 1h followed immediately by quenching process. [Projekat Ministarstva nauke Republike Srbije, br. III45007: Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing
PB  - Technical Faculty - Copper Institute, Bor
T2  - Journal of Mining and Metallurgy, Section B: Metallurgy
T1  - Mechanochemical synthesis of bismuth ferrite
SP  - 27
EP  - 31
VL  - 49
IS  - 1
DO  - 10.2298/JMMB120430039M
UR  - https://hdl.handle.net/21.15107/rcub_dais_363
ER  - 

@article{
author = "Marinković Stanojević, Zorica and Mančić, Lidija and Srećković, Tatjana and Stojanović, B.",
year = "2013",
abstract = "A powder mixture of Bi2O3 and Fe2O3 was mechanically treated in a planetary ball mill in an air from 30 to 720 minutes. It was shown that the mechanochemical formation of BiFeO3 (BFO) phase was initiated after 60 min and its amount increased gradually with increasing milling time. A detailed XRPD structural analysis is realized by Rietveld’s structure refinement method. The resulting lattice parameters, relative phase abundances, crystallite sizes and crystal lattice microstrains were determined as a function of milling time. Microstructural analysis showed a little difference in morphology of obtained powders. The primary particles, irregular in shape and smaller than 400 nm are observed clearly, although they have assembled together to form agglomerates with varying size and morphology. Dense BFO ceramics were prepared by conventional solid-state reaction at the temperature of 810ºC for 1h followed immediately by quenching process. [Projekat Ministarstva nauke Republike Srbije, br. III45007: Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing",
publisher = "Technical Faculty - Copper Institute, Bor",
journal = "Journal of Mining and Metallurgy, Section B: Metallurgy",
title = "Mechanochemical synthesis of bismuth ferrite",
pages = "27-31",
volume = "49",
number = "1",
doi = "10.2298/JMMB120430039M",
url = "https://hdl.handle.net/21.15107/rcub_dais_363"
}

Marinković Stanojević, Z., Mančić, L., Srećković, T.,& Stojanović, B.. (2013). Mechanochemical synthesis of bismuth ferrite. in Journal of Mining and Metallurgy, Section B: Metallurgy
Technical Faculty - Copper Institute, Bor., 49(1), 27-31.
https://doi.org/10.2298/JMMB120430039M
https://hdl.handle.net/21.15107/rcub_dais_363

Marinković Stanojević Z, Mančić L, Srećković T, Stojanović B. Mechanochemical synthesis of bismuth ferrite. in Journal of Mining and Metallurgy, Section B: Metallurgy. 2013;49(1):27-31.
doi:10.2298/JMMB120430039M
https://hdl.handle.net/21.15107/rcub_dais_363 .

Marinković Stanojević, Zorica, Mančić, Lidija, Srećković, Tatjana, Stojanović, B., "Mechanochemical synthesis of bismuth ferrite" in Journal of Mining and Metallurgy, Section B: Metallurgy, 49, no. 1 (2013):27-31,
https://doi.org/10.2298/JMMB120430039M .,
https://hdl.handle.net/21.15107/rcub_dais_363 .

TY  - JOUR
AU  - Jovalekić, Čedomir
AU  - Stojanović, B.
AU  - Zdujić, Miodrag
AU  - Mitrić, Miodrag
PY  - 2004
UR  - https://dais.sanu.ac.rs/123456789/14739
AB  - A powder mixture of alpha-Bi2O3 and ZrO2, both monoclinic, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill in an air atmosphere for up to 20 h, using steel vial and hardened-steel balls as the milling medium. Mechanochemical reaction leads to the gradual formation of an amorphous phase. After 5 h of milling the starting alpha-Bi2O3 and ZrO2 were transformed fully into a non-crystalline phase. After milling for various times the powders were compacted by pressing and isothermal sintering. The pressed and sintered densities depended on the milling time. Depending on the duration of the mechanochemical treatment and sintering temperature, the phases: gamma-Bi-12(ZrxFe1-x)O-20; Bi(ZrxFe1-x)O-3 and Bi-2(ZrxFe1-x)(4)O-9 were obtained by reactive sintering, whereby the Fe originates from vial and ball debris. The dielectric permittivity of the sintered samples significantly depends on the milling time. Samples milled for 10 and 15 h and subsequently sintered at 800degreesC for 24 h exhibit a hysteresis dependence of the dielectric shift (in altering electric fields higher than 10 kV/cm at room temperature), confirming that the synthesized materials possess ferroelectric properties. (C) 2004 Kluwer Academic Publishers.
PB  - Kluwer Academic Publishers
T2  - Journal of Materials Science: Materials in Electronics
T1  - The influence of mechanochemical treatment of the Bi2O3-ZrO2 system on the structural and dielectric properties of the sintered ceramics
SP  - 499
EP  - 504
VL  - 15
IS  - 8
DO  - 10.1023/B:JMSE.0000032583.72582.06
UR  - https://hdl.handle.net/21.15107/rcub_dais_14739
ER  - 

@article{
author = "Jovalekić, Čedomir and Stojanović, B. and Zdujić, Miodrag and Mitrić, Miodrag",
year = "2004",
abstract = "A powder mixture of alpha-Bi2O3 and ZrO2, both monoclinic, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill in an air atmosphere for up to 20 h, using steel vial and hardened-steel balls as the milling medium. Mechanochemical reaction leads to the gradual formation of an amorphous phase. After 5 h of milling the starting alpha-Bi2O3 and ZrO2 were transformed fully into a non-crystalline phase. After milling for various times the powders were compacted by pressing and isothermal sintering. The pressed and sintered densities depended on the milling time. Depending on the duration of the mechanochemical treatment and sintering temperature, the phases: gamma-Bi-12(ZrxFe1-x)O-20; Bi(ZrxFe1-x)O-3 and Bi-2(ZrxFe1-x)(4)O-9 were obtained by reactive sintering, whereby the Fe originates from vial and ball debris. The dielectric permittivity of the sintered samples significantly depends on the milling time. Samples milled for 10 and 15 h and subsequently sintered at 800degreesC for 24 h exhibit a hysteresis dependence of the dielectric shift (in altering electric fields higher than 10 kV/cm at room temperature), confirming that the synthesized materials possess ferroelectric properties. (C) 2004 Kluwer Academic Publishers.",
publisher = "Kluwer Academic Publishers",
journal = "Journal of Materials Science: Materials in Electronics",
title = "The influence of mechanochemical treatment of the Bi2O3-ZrO2 system on the structural and dielectric properties of the sintered ceramics",
pages = "499-504",
volume = "15",
number = "8",
doi = "10.1023/B:JMSE.0000032583.72582.06",
url = "https://hdl.handle.net/21.15107/rcub_dais_14739"
}

Jovalekić, Č., Stojanović, B., Zdujić, M.,& Mitrić, M.. (2004). The influence of mechanochemical treatment of the Bi2O3-ZrO2 system on the structural and dielectric properties of the sintered ceramics. in Journal of Materials Science: Materials in Electronics
Kluwer Academic Publishers., 15(8), 499-504.
https://doi.org/10.1023/B:JMSE.0000032583.72582.06
https://hdl.handle.net/21.15107/rcub_dais_14739

Jovalekić Č, Stojanović B, Zdujić M, Mitrić M. The influence of mechanochemical treatment of the Bi2O3-ZrO2 system on the structural and dielectric properties of the sintered ceramics. in Journal of Materials Science: Materials in Electronics. 2004;15(8):499-504.
doi:10.1023/B:JMSE.0000032583.72582.06
https://hdl.handle.net/21.15107/rcub_dais_14739 .

Jovalekić, Čedomir, Stojanović, B., Zdujić, Miodrag, Mitrić, Miodrag, "The influence of mechanochemical treatment of the Bi2O3-ZrO2 system on the structural and dielectric properties of the sintered ceramics" in Journal of Materials Science: Materials in Electronics, 15, no. 8 (2004):499-504,
https://doi.org/10.1023/B:JMSE.0000032583.72582.06 .,
https://hdl.handle.net/21.15107/rcub_dais_14739 .