Cause of the Failure of Sintered Blanks of Ring Nd–Dy–Fe–Co–B Magnets with a Radial Texture
- 作者: Buzenkov A.1, Korolev D.1, Morgunov R.2, Valeev R.1, Piskorskii V.1
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隶属关系:
- All-Russia Research Institute of Aviation Materials
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- 期: 卷 2019, 编号 7 (2019)
- 页面: 733-736
- 栏目: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/173376
- DOI: https://doi.org/10.1134/S0036029519070036
- ID: 173376
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详细
Abstract—The problem of destruction of blanks of ring Nd–Dy–Fe–Co–B magnets with a radial texture and different cobalt and dysprosium contents is considered. The cause of the failure of radial rings after sintering consists in the presence of the (Nd, Dy)(Fe,Co)4B phase, which is characterized by a high linear thermal expansion coefficient. It is shown that the contribution of the (Nd, Dy)(Fe, Co)4B phase to the saturation magnetization can be neglected. The identified phase is found to have a compensation temperature of 100 K.
作者简介
A. Buzenkov
All-Russia Research Institute of Aviation Materials
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Email: admin@viam.ru
俄罗斯联邦, Moscow
D. Korolev
All-Russia Research Institute of Aviation Materials
Email: admin@viam.ru
俄罗斯联邦, Moscow
R. Morgunov
Institute of Problems of Chemical Physics, Russian Academy of Sciences
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俄罗斯联邦, Chernogolovka, Moscow oblast
R. Valeev
All-Russia Research Institute of Aviation Materials
Email: admin@viam.ru
俄罗斯联邦, Moscow
V. Piskorskii
All-Russia Research Institute of Aviation Materials
Email: admin@viam.ru
俄罗斯联邦, Moscow