Coercive Force of (Pr, Dy)–(Fe, Co)–B Sintered Materials with a Low Rare-Earth Metal Content
- Autores: Korolev D.1, Rezchikova I.1, Valeev R.1, Morgunov R.1,2, Piskorskii V.1
-
Afiliações:
- All-Russia Research Institute of Aviation Materials
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- Edição: Volume 2019, Nº 3 (2019)
- Páginas: 257-260
- Seção: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/173123
- DOI: https://doi.org/10.1134/S0036029519030066
- ID: 173123
Citar
Resumo
Sintered (Pr0.53Dy0.47)ΣR(Fe0.77Co0.23)balB7.5 materials are studied. For the Nd–Fe–B-based materials, the calculated neodymium content in the Nd2Fe14B compound is 11.8 at %, whereas an excess neodymium content as compared to that for the stoichiometric composition should be taken for manufacturing magnets. In contrast to the magnets based on the aforementioned system, the magnets based on the Pr–Dy–Fe–Co–B system can be prepared at a lower total rare-earth metal content as compared to that corresponding to the stoichiometric composition. Magnets with a coercive force of 528 kA/m are manufactured at a total rare-earth metal content of 11.5 at %, which is lower than that calculated for the R2(Fe, Co)14B (R = Pr, Dy) phase.
Palavras-chave
Sobre autores
D. Korolev
All-Russia Research Institute of Aviation Materials
Email: vppvpp@rambler.ru
Rússia, Moscow, 105005
I. Rezchikova
All-Russia Research Institute of Aviation Materials
Email: vppvpp@rambler.ru
Rússia, Moscow, 105005
R. Valeev
All-Russia Research Institute of Aviation Materials
Email: vppvpp@rambler.ru
Rússia, Moscow, 105005
R. Morgunov
All-Russia Research Institute of Aviation Materials; Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: vppvpp@rambler.ru
Rússia, Moscow, 105005; Chernogolovka, Moscow oblast, 142432
V. Piskorskii
All-Russia Research Institute of Aviation Materials
Autor responsável pela correspondência
Email: vppvpp@rambler.ru
Rússia, Moscow, 105005