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27.04.2019

Low-cost Sm_0.7Y_0.3Co₅ sintered magnet produced by traditional powder metallurgical techniques

verfasst von: Dong-Tao Zhang, Nai-Xing Cai, Rong-Chun Zhu, Wei-Qiang Liu, Ming Yue

Erschienen in: Rare Metals | Ausgabe 4/2020

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Abstract

RCo₅ (R = rare earth) sintered magnets have good temperature stability, so it is still widely used in high temperature field. In this paper, by the method of adding liquid phase SmCo_1.7 to the main phase, Sm_0.7Y_0.3Co₅ magnet was prepared by traditional powder metallurgical process. The results show the presence of a main phase RCo₅, a minor phase R₂Co₇, and a R-rich phase in the magnet. Contrasting the results of the XRD (X-ray diffraction) in random and oriented directions, the magnet has a well-aligned (00l) orientated texture, which is consistent with the result of the electron backscattered diffraction (EBSD). The Sm_0.7Y_0.3Co₅ sintered magnet has good magnetic properties as remanence (B_r) is 0.96 T, the coercivity (H_cj) is 1201.96 kA·m⁻¹, and maximum magnetic energy product ((BH)_max) is 175.16 kJ·m⁻³.

Vorheriger Artikel Microstructural dependence of magnetic and magnetostrictive properties in Fe–19 at% Ga

Nächster Artikel Microstructure and wear behavior of AA6061/SiC surface composite fabricated via friction stir processing with different pins and passes

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Titel: Low-cost Sm0.7Y0.3Co5 sintered magnet produced by traditional powder metallurgical techniques
verfasst von: Dong-Tao Zhang
Nai-Xing Cai
Rong-Chun Zhu
Wei-Qiang Liu
Ming Yue
Publikationsdatum: 27.04.2019
Verlag: Nonferrous Metals Society of China
Erschienen in: Rare Metals / Ausgabe 4/2020
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-019-01257-8

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