Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200023 (Institut za tehnologiju nuklearnih i drugih mineralnih sirovina - ITNMS, Beograd) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200023 (Институт за технологију нуклеарних и других минералних сировина - ИТНМС, Београд) (sr)
Authors

Publications

Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics

Đorđević, Nataša; Peleš, Adriana; Obradović, Nina; Vlahović, Milica; Mihajlović, Slavica; Martinović, Sanja

(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, 2021)

TY  - CONF
AU  - Đorđević, Nataša
AU  - Peleš, Adriana
AU  - Obradović, Nina
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12354
AB  - The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with 5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties.
AB  - Mehanička aktivacija početnih smeša kordierita (2MgO*2Al2O3*5SiO2) sa 5.00 mas. % TiO2 izvršena je u visokoenergetskom mlinu sa kuglama tokom 10-80 min. Primenjeni pritisak presovanja pre procesa sinterovanja bio je 2 t/cm2. Proces sinterovanja je izveden na 1350 °C tokom 2h i 4h u vazdušnoj atmosferi. Skenirajuća elektronska mikroskopija je izvršena u cilju analize mikrostrukture presovanih i sinterovanih uzoraka. Za ispitivanje površine sinterovanih uzoraka korišćen je mikroskop atomskih sila. Ovaj rad istražuje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka zajedno sa električnim svojstvima.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS
C3  - Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021
T1  - Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics
T1  - Uticaj vremena sinterovanja na gustinu i SEM analiza kordijeritne keramike
SP  - 265
EP  - 268
UR  - https://hdl.handle.net/21.15107/rcub_dais_12354
ER  - 
@conference{
author = "Đorđević, Nataša and Peleš, Adriana and Obradović, Nina and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2021",
abstract = "The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with 5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties., Mehanička aktivacija početnih smeša kordierita (2MgO*2Al2O3*5SiO2) sa 5.00 mas. % TiO2 izvršena je u visokoenergetskom mlinu sa kuglama tokom 10-80 min. Primenjeni pritisak presovanja pre procesa sinterovanja bio je 2 t/cm2. Proces sinterovanja je izveden na 1350 °C tokom 2h i 4h u vazdušnoj atmosferi. Skenirajuća elektronska mikroskopija je izvršena u cilju analize mikrostrukture presovanih i sinterovanih uzoraka. Za ispitivanje površine sinterovanih uzoraka korišćen je mikroskop atomskih sila. Ovaj rad istražuje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka zajedno sa električnim svojstvima.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS",
journal = "Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021",
title = "Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics, Uticaj vremena sinterovanja na gustinu i SEM analiza kordijeritne keramike",
pages = "265-268",
url = "https://hdl.handle.net/21.15107/rcub_dais_12354"
}
Đorđević, N., Peleš, A., Obradović, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2021). Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics. in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS., 265-268.
https://hdl.handle.net/21.15107/rcub_dais_12354
Đorđević N, Peleš A, Obradović N, Vlahović M, Mihajlović S, Martinović S. Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics. in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021. 2021;:265-268.
https://hdl.handle.net/21.15107/rcub_dais_12354 .
Đorđević, Nataša, Peleš, Adriana, Obradović, Nina, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics" in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021 (2021):265-268,
https://hdl.handle.net/21.15107/rcub_dais_12354 .

Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time

Đorđević, Nataša; Peleš, Adriana; Obradović, Nina; Vlahović, Milica; Mihajlović, Slavica; Martinović, Sanja

(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, 2021)

TY  - CONF
AU  - Đorđević, Nataša
AU  - Peleš, Adriana
AU  - Obradović, Nina
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12355
AB  - The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with 5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties.
AB  - Mehanička aktivacija početnih smeša kordierita (2MgO*2Al2O3*5SiO2) sa 5.00 mas. % TiO2 izvršena je u visokoenergetskom mlinu sa kuglama tokom 10-80 min. Primenjeni pritisak presovanja pre procesa sinterovanja bio je 2 t/cm2. Proces sinterovanja je izveden na 1350 °C tokom 2h i 4h u vazdušnoj atmosferi. Skenirajuća elektronska mikroskopija je izvršena u cilju analize mikrostrukture presovanih i sinterovanih uzoraka. Za ispitivanje površine sinterovanih uzoraka korišćen je mikroskop atomskih sila. Ovaj rad istražuje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka zajedno sa električnim svojstvima.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS
C3  - Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021
T1  - Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time
T1  - Električna svojstva izotermski sinterovane keramike na bazi kordierita kao funkcija vremena sinterovanja i aktivacije
SP  - 269
EP  - 272
UR  - https://hdl.handle.net/21.15107/rcub_dais_12355
ER  - 
@conference{
author = "Đorđević, Nataša and Peleš, Adriana and Obradović, Nina and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2021",
abstract = "The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with 5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties., Mehanička aktivacija početnih smeša kordierita (2MgO*2Al2O3*5SiO2) sa 5.00 mas. % TiO2 izvršena je u visokoenergetskom mlinu sa kuglama tokom 10-80 min. Primenjeni pritisak presovanja pre procesa sinterovanja bio je 2 t/cm2. Proces sinterovanja je izveden na 1350 °C tokom 2h i 4h u vazdušnoj atmosferi. Skenirajuća elektronska mikroskopija je izvršena u cilju analize mikrostrukture presovanih i sinterovanih uzoraka. Za ispitivanje površine sinterovanih uzoraka korišćen je mikroskop atomskih sila. Ovaj rad istražuje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka zajedno sa električnim svojstvima.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS",
journal = "Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021",
title = "Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time, Električna svojstva izotermski sinterovane keramike na bazi kordierita kao funkcija vremena sinterovanja i aktivacije",
pages = "269-272",
url = "https://hdl.handle.net/21.15107/rcub_dais_12355"
}
Đorđević, N., Peleš, A., Obradović, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2021). Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time. in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS., 269-272.
https://hdl.handle.net/21.15107/rcub_dais_12355
Đorđević N, Peleš A, Obradović N, Vlahović M, Mihajlović S, Martinović S. Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time. in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021. 2021;:269-272.
https://hdl.handle.net/21.15107/rcub_dais_12355 .
Đorđević, Nataša, Peleš, Adriana, Obradović, Nina, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time" in Zbornik radova / 9. Međunarodna konferencija o obnovljivim izvorima električne energije, Beograd, 15. oktobar 2021 = Proceedings / 9th International Conference on Renewable Electrical Power Sources, Belgrade, October 15, 2021 (2021):269-272,
https://hdl.handle.net/21.15107/rcub_dais_12355 .

The thermophysical properties of primary phase in lithium germanium phosphate glass

Matijašević, Srđan; Topalović, Vladimir; Grujić, Snežana; Savić, Veljko; Nikolić, Jelena; Labus, Nebojša; Zildžović, Snežana

(Belgrade : ETRAN, 2021)

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Topalović, Vladimir
AU  - Grujić, Snežana
AU  - Savić, Veljko
AU  - Nikolić, Jelena
AU  - Labus, Nebojša
AU  - Zildžović, Snežana
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12340
AB  - The selected lithium germanium-phosphate glass was prepared by a conventional melt-quenching technique. The XRD method was employed to confirm the glass was obtained and to reveal crystalline phases during heat treatment. The dilatometry (DIL), differential thermal analysis (DTA), and differential scanning calorimetry (DSC) were used to determine the characteristic temperatures and enthalpies of crystallization and melting of the crystalline phase. The DTA and DIL were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tammann (VFT) equation.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - The thermophysical properties of primary phase in lithium germanium phosphate glass
SP  - 301
EP  - 310
VL  - 53
IS  - 3
DO  - 10.2298/SOS2103301M
UR  - https://hdl.handle.net/21.15107/rcub_dais_12340
ER  - 
@article{
author = "Matijašević, Srđan and Topalović, Vladimir and Grujić, Snežana and Savić, Veljko and Nikolić, Jelena and Labus, Nebojša and Zildžović, Snežana",
year = "2021",
abstract = "The selected lithium germanium-phosphate glass was prepared by a conventional melt-quenching technique. The XRD method was employed to confirm the glass was obtained and to reveal crystalline phases during heat treatment. The dilatometry (DIL), differential thermal analysis (DTA), and differential scanning calorimetry (DSC) were used to determine the characteristic temperatures and enthalpies of crystallization and melting of the crystalline phase. The DTA and DIL were used to obtain the viscosity curves by applying the Vogel-Fulcher-Tammann (VFT) equation.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "The thermophysical properties of primary phase in lithium germanium phosphate glass",
pages = "301-310",
volume = "53",
number = "3",
doi = "10.2298/SOS2103301M",
url = "https://hdl.handle.net/21.15107/rcub_dais_12340"
}
Matijašević, S., Topalović, V., Grujić, S., Savić, V., Nikolić, J., Labus, N.,& Zildžović, S.. (2021). The thermophysical properties of primary phase in lithium germanium phosphate glass. in Science of Sintering
Belgrade : ETRAN., 53(3), 301-310.
https://doi.org/10.2298/SOS2103301M
https://hdl.handle.net/21.15107/rcub_dais_12340
Matijašević S, Topalović V, Grujić S, Savić V, Nikolić J, Labus N, Zildžović S. The thermophysical properties of primary phase in lithium germanium phosphate glass. in Science of Sintering. 2021;53(3):301-310.
doi:10.2298/SOS2103301M
https://hdl.handle.net/21.15107/rcub_dais_12340 .
Matijašević, Srđan, Topalović, Vladimir, Grujić, Snežana, Savić, Veljko, Nikolić, Jelena, Labus, Nebojša, Zildžović, Snežana, "The thermophysical properties of primary phase in lithium germanium phosphate glass" in Science of Sintering, 53, no. 3 (2021):301-310,
https://doi.org/10.2298/SOS2103301M .,
https://hdl.handle.net/21.15107/rcub_dais_12340 .
1

Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases

Radosavljević-Mihajlović, Ana; Mitić, Vojislav V.; Šaponjić, Aleksandra; Kasić, Vladan

(2021)

TY  - JOUR
AU  - Radosavljević-Mihajlović, Ana
AU  - Mitić, Vojislav V.
AU  - Šaponjić, Aleksandra
AU  - Kasić, Vladan
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12387
AB  - Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.
T2  - Science of Sintering
T1  - Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases
SP  - 397
EP  - 406
VL  - 53
IS  - 3
DO  - 10.2298/SOS2103397R
UR  - https://hdl.handle.net/21.15107/rcub_dais_12387
ER  - 
@article{
author = "Radosavljević-Mihajlović, Ana and Mitić, Vojislav V. and Šaponjić, Aleksandra and Kasić, Vladan",
year = "2021",
abstract = "Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.",
journal = "Science of Sintering",
title = "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases",
pages = "397-406",
volume = "53",
number = "3",
doi = "10.2298/SOS2103397R",
url = "https://hdl.handle.net/21.15107/rcub_dais_12387"
}
Radosavljević-Mihajlović, A., Mitić, V. V., Šaponjić, A.,& Kasić, V.. (2021). Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering, 53(3), 397-406.
https://doi.org/10.2298/SOS2103397R
https://hdl.handle.net/21.15107/rcub_dais_12387
Radosavljević-Mihajlović A, Mitić VV, Šaponjić A, Kasić V. Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering. 2021;53(3):397-406.
doi:10.2298/SOS2103397R
https://hdl.handle.net/21.15107/rcub_dais_12387 .
Radosavljević-Mihajlović, Ana, Mitić, Vojislav V., Šaponjić, Aleksandra, Kasić, Vladan, "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases" in Science of Sintering, 53, no. 3 (2021):397-406,
https://doi.org/10.2298/SOS2103397R .,
https://hdl.handle.net/21.15107/rcub_dais_12387 .
1
1

Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja

Mihailović, Marija; Jegdić, Bore; Jugović, Branimir; Kovačina, Jovanka; Radojković, Bojana; Patarić, Aleksandra; Jokić, Bojan

(Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy, 2021)

TY  - GEN
AU  - Mihailović, Marija
AU  - Jegdić, Bore
AU  - Jugović, Branimir
AU  - Kovačina, Jovanka
AU  - Radojković, Bojana
AU  - Patarić, Aleksandra
AU  - Jokić, Bojan
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11630
AB  - Praćenje pojave i brzine korozije, nastanak termičkih oksida na površini metalnih delova eletroenergetskog postrojenјa, kao i način njihovog otklanjanja na način koji je tehnološki pogodan, ekonomski pristupačan i ekološki opravdan prikazan je u ovom tehničkom rešenju Ispitivanjem je ustanovljeno da su metalni delovi na kojima se javlja korozija izrađeni od na nerđajućeg čelika AISI 304, pa je pojava korozije i termičkih oksida praćena je u odnosu na to, kao i sastav prašine sa kojom su metalni delovi u kontaktu. Pojava termičkih oksida na površini nerđajućih čelika posledica je povišene temperature na mestu zavarivanja metalnih delova.
Merena je vrednost pH oba rastvora: etalonskog i zasićenog rastvoru prašine iz pogona.
Sastav uzoraka prašine određen je FTIR metodom, pa su na osnovu prisutnih jona u rastvoru definisana ostala ispitivanja.
Određivan je korozioni potencijal Ekor, vrednost otpora polarizacije Rp, kao i gustina struje korozije jkor. Sva ispitivanja nerđajućeg čelika u etalonskom rastvoru i u zasićenom rastvoru prašine iz pogona firme naručioca, rađena su za 1 sat i u toku 25 dana.
Kao rezultat svih istražoivanja, date su tehnološke preporuke i način otklanjanja korozije i termičkih oksida.
Rešenje je prodato naručuicu u toku 2020.godine, a od januara 2021.godine primenjeno u postrojenju naručioca, ELNOS BL d.o.o., koji su izjavom potvrdili primenu ovog tehničkog rešenja u svom poslovanju.
AB  - Monitoring the occurrence and rate of corrosion, the formation of thermal oxides on the surface of metal parts of the power plant, as well as the method of their elimination in a way that is technologically suitable, economically affordable and environmentally justified is shown in this technical solution. It has been established that the metal elements affected by corrosion were made from stainless steel AISI 304. Accordingly, the occurrence of corrosion and thermal oxides was monitored based on the material and the composition of the dust with which the metal parts are in contact. The emergence of thermal oxides on the surface of stainless steels is a consequence of the elevated temperature at the welding site.
The pH value of both solutions was measured: standard and saturated solution of dust from the plant. The composition of the dust samples was determined by FTIR. The other tests were defined based on the ions present in the solution.
The corrosion potential, the value of the polarization resistance, as well as the corrosion current density were determined. All tests of stainless steel in the standard solution and in the saturated solution of dust were performed for one hour within a span of 25 days.
Technological recommendations on how to eliminate corrosion and thermal oxides are provided.
The solution has been applied since January 2021 by ELNOS BL d.o.o.
PB  - Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy
T1  - Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja
T1  - Possibility of removal of corrosion and thermal oxides on metal parts of electric power plant
UR  - https://hdl.handle.net/21.15107/rcub_dais_11630
ER  - 
@misc{
author = "Mihailović, Marija and Jegdić, Bore and Jugović, Branimir and Kovačina, Jovanka and Radojković, Bojana and Patarić, Aleksandra and Jokić, Bojan",
year = "2021",
abstract = "Praćenje pojave i brzine korozije, nastanak termičkih oksida na površini metalnih delova eletroenergetskog postrojenјa, kao i način njihovog otklanjanja na način koji je tehnološki pogodan, ekonomski pristupačan i ekološki opravdan prikazan je u ovom tehničkom rešenju Ispitivanjem je ustanovljeno da su metalni delovi na kojima se javlja korozija izrađeni od na nerđajućeg čelika AISI 304, pa je pojava korozije i termičkih oksida praćena je u odnosu na to, kao i sastav prašine sa kojom su metalni delovi u kontaktu. Pojava termičkih oksida na površini nerđajućih čelika posledica je povišene temperature na mestu zavarivanja metalnih delova.
Merena je vrednost pH oba rastvora: etalonskog i zasićenog rastvoru prašine iz pogona.
Sastav uzoraka prašine određen je FTIR metodom, pa su na osnovu prisutnih jona u rastvoru definisana ostala ispitivanja.
Određivan je korozioni potencijal Ekor, vrednost otpora polarizacije Rp, kao i gustina struje korozije jkor. Sva ispitivanja nerđajućeg čelika u etalonskom rastvoru i u zasićenom rastvoru prašine iz pogona firme naručioca, rađena su za 1 sat i u toku 25 dana.
Kao rezultat svih istražoivanja, date su tehnološke preporuke i način otklanjanja korozije i termičkih oksida.
Rešenje je prodato naručuicu u toku 2020.godine, a od januara 2021.godine primenjeno u postrojenju naručioca, ELNOS BL d.o.o., koji su izjavom potvrdili primenu ovog tehničkog rešenja u svom poslovanju., Monitoring the occurrence and rate of corrosion, the formation of thermal oxides on the surface of metal parts of the power plant, as well as the method of their elimination in a way that is technologically suitable, economically affordable and environmentally justified is shown in this technical solution. It has been established that the metal elements affected by corrosion were made from stainless steel AISI 304. Accordingly, the occurrence of corrosion and thermal oxides was monitored based on the material and the composition of the dust with which the metal parts are in contact. The emergence of thermal oxides on the surface of stainless steels is a consequence of the elevated temperature at the welding site.
The pH value of both solutions was measured: standard and saturated solution of dust from the plant. The composition of the dust samples was determined by FTIR. The other tests were defined based on the ions present in the solution.
The corrosion potential, the value of the polarization resistance, as well as the corrosion current density were determined. All tests of stainless steel in the standard solution and in the saturated solution of dust were performed for one hour within a span of 25 days.
Technological recommendations on how to eliminate corrosion and thermal oxides are provided.
The solution has been applied since January 2021 by ELNOS BL d.o.o.",
publisher = "Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy",
title = "Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja, Possibility of removal of corrosion and thermal oxides on metal parts of electric power plant",
url = "https://hdl.handle.net/21.15107/rcub_dais_11630"
}
Mihailović, M., Jegdić, B., Jugović, B., Kovačina, J., Radojković, B., Patarić, A.,& Jokić, B.. (2021). Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja. 
Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy..
https://hdl.handle.net/21.15107/rcub_dais_11630
Mihailović M, Jegdić B, Jugović B, Kovačina J, Radojković B, Patarić A, Jokić B. Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja. 2021;.
https://hdl.handle.net/21.15107/rcub_dais_11630 .
Mihailović, Marija, Jegdić, Bore, Jugović, Branimir, Kovačina, Jovanka, Radojković, Bojana, Patarić, Aleksandra, Jokić, Bojan, "Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja" (2021),
https://hdl.handle.net/21.15107/rcub_dais_11630 .