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A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content

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2009
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Аутори
Grujić, Aleksandar
Žak, Tomas
Talijan, Nadežda M.
Stajić-Trošić, Jasna
Ćosović, Vladan
Чланак у часопису (Објављена верзија)
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Апстракт
Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops.
Istraživane su promene faznog sastava i magnetnih svojstava u odnosu na optimalno magnetno stanje za tri tipa komercijalnih Nd-Fe-B legura sa različitim sadržajem neodijuma - niskim (10-12 mas %), bliskim stehiometrijskom (21-25 mas %) i visokim (26-29 mas %), prouzrokovanih termomagnetnim (TM) merenjima. Fazni sastavi istraživanih legura pre i posle TM merenja do 800°C su poređeni koršćenjem 57Fe Mössbauer spektroskopske fazne analize i rendgensko-difraktometrijske analize. Usled termomagnetnih merenja dolazi do dekompozicije sva tri istraživana materijala i kao osnovni produkti dekompozicije nastaju α-Fe i Fe2B faze. Posmatrane promene u strukturi i faznom sastavu imaju direktan uticaj na magnetna svojstva. Gubitak magnetnih svojstava nastao usled termičke dekompozicije je jasno ilustrovan odgovarajućim SQUID histerezisnim petljama.
Кључне речи:
Nd-Fe-B alloys / thermomagnetic measurements / phase composition / structure / magnetic properties / Nd-Fe-B legure / termomagnetna merenja / fazni sastav / struktura / magnetna svojstva
Извор:
Science of Sintering, 2009, 41, 3, 337-345
Издавач:
  • International Institute for the Science of Sintering, Beograd
Финансирање / пројекти:
  • Дизајнирање нанокристалних магнетних материјала типа (Nd,Pr)FeB и компоненти на бази смарт магнетних материјала (RS-142035)

DOI: 10.2298/SOS0903337G

ISSN: 0350-820X

WoS: 000275835500012

Scopus: 2-s2.0-76649140137
[ Google Scholar ]
2
2
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/522
Колекције
  • Radovi istraživača / Researchers' publications
Институција/група
IHTM
TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Vladan
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/522
AB  - Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops.
AB  - Istraživane su promene faznog sastava i magnetnih svojstava u odnosu na optimalno magnetno stanje za tri tipa komercijalnih Nd-Fe-B legura sa različitim sadržajem neodijuma - niskim (10-12 mas %), bliskim stehiometrijskom (21-25 mas %) i visokim (26-29 mas %), prouzrokovanih termomagnetnim (TM) merenjima. Fazni sastavi istraživanih legura pre i posle TM merenja do 800°C su poređeni koršćenjem 57Fe Mössbauer spektroskopske fazne analize i rendgensko-difraktometrijske analize. Usled termomagnetnih merenja dolazi do dekompozicije sva tri istraživana materijala i kao osnovni produkti dekompozicije nastaju α-Fe i Fe2B faze. Posmatrane promene u strukturi i faznom sastavu imaju direktan uticaj na magnetna svojstva. Gubitak magnetnih svojstava nastao usled termičke dekompozicije je jasno ilustrovan odgovarajućim SQUID histerezisnim petljama.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content
VL  - 41
IS  - 3
SP  - 337
EP  - 345
DO  - 10.2298/SOS0903337G
ER  - 
@article{
author = "Grujić, Aleksandar and Žak, Tomas and Talijan, Nadežda M. and Stajić-Trošić, Jasna and Ćosović, Vladan",
year = "2009",
abstract = "Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops., Istraživane su promene faznog sastava i magnetnih svojstava u odnosu na optimalno magnetno stanje za tri tipa komercijalnih Nd-Fe-B legura sa različitim sadržajem neodijuma - niskim (10-12 mas %), bliskim stehiometrijskom (21-25 mas %) i visokim (26-29 mas %), prouzrokovanih termomagnetnim (TM) merenjima. Fazni sastavi istraživanih legura pre i posle TM merenja do 800°C su poređeni koršćenjem 57Fe Mössbauer spektroskopske fazne analize i rendgensko-difraktometrijske analize. Usled termomagnetnih merenja dolazi do dekompozicije sva tri istraživana materijala i kao osnovni produkti dekompozicije nastaju α-Fe i Fe2B faze. Posmatrane promene u strukturi i faznom sastavu imaju direktan uticaj na magnetna svojstva. Gubitak magnetnih svojstava nastao usled termičke dekompozicije je jasno ilustrovan odgovarajućim SQUID histerezisnim petljama.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content",
volume = "41",
number = "3",
pages = "337-345",
doi = "10.2298/SOS0903337G"
}
Grujić, A., Žak, T., Talijan, N. M., Stajić-Trošić, J.,& Ćosović, V.. (2009). A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 41(3), 337-345.
https://doi.org/10.2298/SOS0903337G
Grujić A, Žak T, Talijan NM, Stajić-Trošić J, Ćosović V. A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content. in Science of Sintering. 2009;41(3):337-345.
doi:10.2298/SOS0903337G .
Grujić, Aleksandar, Žak, Tomas, Talijan, Nadežda M., Stajić-Trošić, Jasna, Ćosović, Vladan, "A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content" in Science of Sintering, 41, no. 3 (2009):337-345,
https://doi.org/10.2298/SOS0903337G . .

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