Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy
2009
Аутори
Ćosović, VladanTalijan, Nadežda M.
Grujić, Aleksandar
Stajić-Trošić, Jasna
Živković, Dragana
Lee, Z.
Radmilović, V.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The rapid-quenched (R/Q) and subsequently optimally annealed Nd-Fe-B alloy with 12 wt% Nd was characterized using the X-Ray diffractometry (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HREM) and superconducting quantum interference device (SQUID) magnetometer. It was found that microstructure of the investigated alloy mainly consist of Fe3B, Nd2Fe14B phases and minor content of α-Fe phase, with mean crystal grain sizes being below 30 nm. The ferromagnetic exchange coupling between the grains of identified hard and soft magnetic phases has direct influence on the magnetic properties as it is illustrated by SQUID hysteresis loop. Correlation of the measured magnetic properties with results of microstructure analysis indicates that the investigated rapid-quenched Nd-Fe-B alloy has the nanocomposite structure in optimal magnetic state.
Кључне речи:
nanocomposite Nd-Fe-B alloys / exchange coupling / phase composition / crystal grain size / magnetic propertiesИзвор:
Metalurgija, 2009, 15, 1, 39-44Финансирање / пројекти:
- Дизајнирање нанокристалних магнетних материјала типа (Nd,Pr)FeB и компоненти на бази смарт магнетних материјала (RS-MESTD-MPN2006-2010-142035)
Институција/група
IHTMTY - JOUR AU - Ćosović, Vladan AU - Talijan, Nadežda M. AU - Grujić, Aleksandar AU - Stajić-Trošić, Jasna AU - Živković, Dragana AU - Lee, Z. AU - Radmilović, V. PY - 2009 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/561 AB - The rapid-quenched (R/Q) and subsequently optimally annealed Nd-Fe-B alloy with 12 wt% Nd was characterized using the X-Ray diffractometry (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HREM) and superconducting quantum interference device (SQUID) magnetometer. It was found that microstructure of the investigated alloy mainly consist of Fe3B, Nd2Fe14B phases and minor content of α-Fe phase, with mean crystal grain sizes being below 30 nm. The ferromagnetic exchange coupling between the grains of identified hard and soft magnetic phases has direct influence on the magnetic properties as it is illustrated by SQUID hysteresis loop. Correlation of the measured magnetic properties with results of microstructure analysis indicates that the investigated rapid-quenched Nd-Fe-B alloy has the nanocomposite structure in optimal magnetic state. T2 - Metalurgija T1 - Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy VL - 15 IS - 1 SP - 39 EP - 44 UR - https://hdl.handle.net/21.15107/rcub_cer_561 ER -
@article{ author = "Ćosović, Vladan and Talijan, Nadežda M. and Grujić, Aleksandar and Stajić-Trošić, Jasna and Živković, Dragana and Lee, Z. and Radmilović, V.", year = "2009", abstract = "The rapid-quenched (R/Q) and subsequently optimally annealed Nd-Fe-B alloy with 12 wt% Nd was characterized using the X-Ray diffractometry (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HREM) and superconducting quantum interference device (SQUID) magnetometer. It was found that microstructure of the investigated alloy mainly consist of Fe3B, Nd2Fe14B phases and minor content of α-Fe phase, with mean crystal grain sizes being below 30 nm. The ferromagnetic exchange coupling between the grains of identified hard and soft magnetic phases has direct influence on the magnetic properties as it is illustrated by SQUID hysteresis loop. Correlation of the measured magnetic properties with results of microstructure analysis indicates that the investigated rapid-quenched Nd-Fe-B alloy has the nanocomposite structure in optimal magnetic state.", journal = "Metalurgija", title = "Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy", volume = "15", number = "1", pages = "39-44", url = "https://hdl.handle.net/21.15107/rcub_cer_561" }
Ćosović, V., Talijan, N. M., Grujić, A., Stajić-Trošić, J., Živković, D., Lee, Z.,& Radmilović, V.. (2009). Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy. in Metalurgija, 15(1), 39-44. https://hdl.handle.net/21.15107/rcub_cer_561
Ćosović V, Talijan NM, Grujić A, Stajić-Trošić J, Živković D, Lee Z, Radmilović V. Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy. in Metalurgija. 2009;15(1):39-44. https://hdl.handle.net/21.15107/rcub_cer_561 .
Ćosović, Vladan, Talijan, Nadežda M., Grujić, Aleksandar, Stajić-Trošić, Jasna, Živković, Dragana, Lee, Z., Radmilović, V., "Study of microstructure and magnetic properties of optimally annealed R/Q Nd4.5Fe77B18.5 alloy" in Metalurgija, 15, no. 1 (2009):39-44, https://hdl.handle.net/21.15107/rcub_cer_561 .