Correlation between Fe content and z value in Sm(CobalFexCu0.06Zr0.025)z permanent magnets

被引：25
|
作者：
Wang, Y. Q. [1 ]
Shang, Z. F. [1 ]
Yue, M. [1 ]
Wu, D. [1 ]
Zhang, D. T. [1 ]
Zhang, H. G. [1 ]
Liu, W. Q. [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 474卷
基金：
北京市自然科学基金;
关键词：
Sm(CoFeCuZr)(z) permanent magnets; Fe content; z value; Microstructure; Magnetic properties; Domain width; TEMPERATURE-DEPENDENCE; SINTERED MAGNETS; DOMAIN-STRUCTURE; MICROSTRUCTURE; COERCIVITY; CU; SM(CO; FE; ZR)(Z); PERFORMANCE; EVOLUTION; NANOSTRUCTURES;
D O I：
10.1016/j.jmmm.2018.11.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Correlation between Fe content and z value on the structural and magnetic properties of the Sm (CobalFexCu0.06Zr0.025)(z) magnets (x = 0.20, 0.25, 0.28, and z = 7, 9.5) has been investigated. It is found that the cellular phases in the magnets grow up with increasing Fe content, so the cell boundary phases could hardly form well without enough Sm atoms, resulting in coercivity decreasing. After supplement of Sm content by decreasing z value, cell boundary phases formed continuously, and coercivity was strongly enhanced due to the remarkable concentration gradient of Cu between the 1:5H cell boundary phase and 2:17R cellular phase. It is thus suggested that as the Fe content increases, the z value of magnets need reducing simultaneously in order to keep high coercivity of the magnets.
引用
收藏
页码：417 / 423
页数：7
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