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Thermal stability of MnBi magnetic materials

TitleThermal stability of MnBi magnetic materials
Publication TypeJournal Article
Year of Publication2014
AuthorsCui, J, Choi, JP, Li, G, Polikarpov, E, Darsell, J, Overman, N, Olszta, M, Schreiber, D, Bowden, M, Droubay, T, Kramer, MJ, Zarkevich, NA, Wang, LL, Johnson, DD, Marinescu, M, Takeuchi, I, Huang, QZ, Wu, H, Reeve, H, Vuong, NV, Liu, JP
JournalJournal of Physics-Condensed Matter
Date Published02
Type of ArticleArticle
ISBN Number0953-8984
Accession NumberWOS:000330719100013
Keywordsintermetallic compound, MnBi, neutron-diffraction, non rare earth permanent magnet, phase, positive, rapid solidification, temperature coefficient, thermal decomposition

90%) can be routinely produced in large quantities. The produced powder exhibits 74.6 emu g(-1) saturation magnetization at room temperature with 9 T applied field. After proper alignment, the maximum energy product (BH)(max) of the powder reached 11.9 MGOe, and that of the sintered bulk magnet reached 7.8 MGOe at room temperature. A comprehensive study of thermal stability shows that MnBi powder is stable up to 473 K in air.

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