Influence of Swaging on the Magnetic Properties of Zn-Bonded Sm-Fe-N Magnets

被引：12

作者：

Kataoka, Kohei ^{[1
]}

Matsuura, Masashi ^{[1
]}

Tezuka, Nobuki ^{[1
]}

Sugimoto, Satoshi ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

MATERIALS TRANSACTIONS | 2015年 / 56卷 / 10期

关键词：

samarium-iron-nitrogen; zinc-bonded magnets; swaging; high densification; high coercivity; SM2FE17N3;

D O I：

10.2320/matertrans.M2015190

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Swaging was investigated as a fabrication process for high-density Zn-bonded Sm-Fe-N magnets, which mainly consisted of Sm2Fe17Nx, and their magnetic properties were investigated. The demagnetization curves of the annealed specimens with or without swaging suggested that swaging improved the magnetic polarization. The specimen swaged with a reduction ratio (R) of 82%, a high maximum energy product ((BH)(max)) of 67.8 kJ.m(-3) with a high coercivity (H-cJ) of 1.89 MA.m(-1) was obtained. Sm-Fe-N particles were pulverized and the dispersion of Zn particles was improved during swaging, the density of specimens increased resulting in the increase in H-cJ and (BH)(max).

引用

页码：88 / 92

页数：5

共 11 条

[1] Study of thermal decomposition mechanism of the Fe17Sm2N3 phase [J].