Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita
Chemical and mechanochemical syntheses of yttrium manganite based multiferroics.

2016
Authors
Počuča-Nešić, Milica
Mentor
Marinković-Stanojević, Zorica
Committee members
Pavlović, VladimirBranković, Zorica

Branković, Goran

Dapčević, Aleksandra
Doctoral thesis (Published version)
Metadata
Show full item recordAbstract
U okviru ove doktorske disertacije ispitivan je uticaj parametara mehanohemijske i hemijske sinteze na strukturu i svojstva prahova i keramičkih uzoraka itrijum- -manganita (YMnO3, YMO). Smeša prahova Y2O3 i Mn2O3 mlevena je u planetarnom mlinu tokom vremenskih perioda od 60 – 720 min. Rendgenska analiza dobijenih prahova pokazala je da su tokom mlevenja od 240, 360 i 720 min dobijeni jednofazni pahovi rombičnog YMnO3 (o-YMO). Primarne čestice u prahovima su ispod 100 nm, a produžavanje vremena mlevenja dovodi do aglomeracije. Magnetna svojstva ukazuju da su prahovi u osnovi antiferomagnetični, uz delimično narušeno uređenje spinova prisustvom Mn4+-jona...
Within this doctoral dissertation, the influence of mechanochemical and chemical synthesis parameters on the structure and properties of yttrium manganite (YMnO3, YMO) powders and ceramics was investigated. Mixture of Y2O3 and Mn2O3 was milled in a planetary ball mill for periods of 60 – 720 min. X-ray analysis of the resulting powders showed that single-phased orthorhombic YMnO3 (o-YMO) powders were obtained for milling periods of 240, 360 and 720 min. The size of primary particles in the powders was below 100 nm, while a prolongation of the milling time led to agglomeration. The magnetic properties indicated that the powders were basically antiferromagnetic with partially disordered spins by the presence of Mn4+ ions...
Keywords:
multiferoici / mehanohemijska sinteza / magnetna svojstva / itrijum-manganit / hemijska sinteza / yttrium manganite / multiferroics / mechanochemical synthesis / magnetic properties / chemical synthesisSource:
2016Publisher:
- Univerzitet u Beogradu, Hemijski fakultet
Funding / projects:
URI
http://eteze.bg.ac.rs/application/showtheses?thesesId=4302https://nardus.mpn.gov.rs/handle/123456789/7250
https://fedorabg.bg.ac.rs/fedora/get/o:14088/bdef:Content/download
https://fedorabg.bg.ac.rs/fedora/get/o:14248/bdef:Izvestaj/download
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http://rimsi.imsi.bg.ac.rs/handle/123456789/13
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Institut za multidisciplinarna istraživanjaTY - THES AU - Počuča-Nešić, Milica PY - 2016 UR - http://eteze.bg.ac.rs/application/showtheses?thesesId=4302 UR - https://nardus.mpn.gov.rs/handle/123456789/7250 UR - https://fedorabg.bg.ac.rs/fedora/get/o:14088/bdef:Content/download UR - https://fedorabg.bg.ac.rs/fedora/get/o:14248/bdef:Izvestaj/download UR - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48339727 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/13 AB - U okviru ove doktorske disertacije ispitivan je uticaj parametara mehanohemijske i hemijske sinteze na strukturu i svojstva prahova i keramičkih uzoraka itrijum- -manganita (YMnO3, YMO). Smeša prahova Y2O3 i Mn2O3 mlevena je u planetarnom mlinu tokom vremenskih perioda od 60 – 720 min. Rendgenska analiza dobijenih prahova pokazala je da su tokom mlevenja od 240, 360 i 720 min dobijeni jednofazni pahovi rombičnog YMnO3 (o-YMO). Primarne čestice u prahovima su ispod 100 nm, a produžavanje vremena mlevenja dovodi do aglomeracije. Magnetna svojstva ukazuju da su prahovi u osnovi antiferomagnetični, uz delimično narušeno uređenje spinova prisustvom Mn4+-jona... AB - Within this doctoral dissertation, the influence of mechanochemical and chemical synthesis parameters on the structure and properties of yttrium manganite (YMnO3, YMO) powders and ceramics was investigated. Mixture of Y2O3 and Mn2O3 was milled in a planetary ball mill for periods of 60 – 720 min. X-ray analysis of the resulting powders showed that single-phased orthorhombic YMnO3 (o-YMO) powders were obtained for milling periods of 240, 360 and 720 min. The size of primary particles in the powders was below 100 nm, while a prolongation of the milling time led to agglomeration. The magnetic properties indicated that the powders were basically antiferromagnetic with partially disordered spins by the presence of Mn4+ ions... PB - Univerzitet u Beogradu, Hemijski fakultet T1 - Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita T1 - Chemical and mechanochemical syntheses of yttrium manganite based multiferroics. UR - https://hdl.handle.net/21.15107/rcub_nardus_7250 ER -
@phdthesis{ author = "Počuča-Nešić, Milica", year = "2016", abstract = "U okviru ove doktorske disertacije ispitivan je uticaj parametara mehanohemijske i hemijske sinteze na strukturu i svojstva prahova i keramičkih uzoraka itrijum- -manganita (YMnO3, YMO). Smeša prahova Y2O3 i Mn2O3 mlevena je u planetarnom mlinu tokom vremenskih perioda od 60 – 720 min. Rendgenska analiza dobijenih prahova pokazala je da su tokom mlevenja od 240, 360 i 720 min dobijeni jednofazni pahovi rombičnog YMnO3 (o-YMO). Primarne čestice u prahovima su ispod 100 nm, a produžavanje vremena mlevenja dovodi do aglomeracije. Magnetna svojstva ukazuju da su prahovi u osnovi antiferomagnetični, uz delimično narušeno uređenje spinova prisustvom Mn4+-jona..., Within this doctoral dissertation, the influence of mechanochemical and chemical synthesis parameters on the structure and properties of yttrium manganite (YMnO3, YMO) powders and ceramics was investigated. Mixture of Y2O3 and Mn2O3 was milled in a planetary ball mill for periods of 60 – 720 min. X-ray analysis of the resulting powders showed that single-phased orthorhombic YMnO3 (o-YMO) powders were obtained for milling periods of 240, 360 and 720 min. The size of primary particles in the powders was below 100 nm, while a prolongation of the milling time led to agglomeration. The magnetic properties indicated that the powders were basically antiferromagnetic with partially disordered spins by the presence of Mn4+ ions...", publisher = "Univerzitet u Beogradu, Hemijski fakultet", title = "Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita, Chemical and mechanochemical syntheses of yttrium manganite based multiferroics.", url = "https://hdl.handle.net/21.15107/rcub_nardus_7250" }
Počuča-Nešić, M.. (2016). Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita. Univerzitet u Beogradu, Hemijski fakultet.. https://hdl.handle.net/21.15107/rcub_nardus_7250
Počuča-Nešić M. Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita. 2016;. https://hdl.handle.net/21.15107/rcub_nardus_7250 .
Počuča-Nešić, Milica, "Hemijska i mehanohemijska sinteza multiferoika na bazi itrijum-manganita" (2016), https://hdl.handle.net/21.15107/rcub_nardus_7250 .