Influence of intermediate-heat treatment on the structure and magnetic properties of iron-rich Sm(CoFeCuZr)Z sintered magnets

被引：91

作者：

Horiuchi, Yosuke ^{[1
]}

Hagiwara, Masaya ^{[1
]}

Endo, Masaki ^{[1
]}

Sanada, Naoyuki ^{[1
]}

Sakurada, Shinya ^{[1
]}

机构：

[1] Toshiba Co Ltd, Funct Mat Lab, Corp R&D Ctr, Kawasaki, Kanagawa 2128582, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 17期

关键词：

PERMANENT-MAGNETS; MICROSTRUCTURE; TEMPERATURE; ALLOYS; FE;

D O I：

10.1063/1.4906757

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, we investigated intermediate-heat treatment (IHT) at temperatures between those of sintering and solution treatment, and evaluated the effects on the macrostructure, microstructure, and magnetic properties of Sm(CobalFe0.35Cu0.06Zr0.018)(7.8). We found that squareness was clearly improved by adopting the IHT, which promotes grain growth. These results indicate that reducing the fraction of grain boundaries by increasing the grain size affects the behavior of domain-wall motion. Magnetic properties of M-r 1.22 T, H-cJ 1580 kA/m, and (BH)(max) 282 kJ/m(3) (> 35 MGOe) were obtained for Sm(Co-bal. Fe0.35Cu0.06Zr0.018)(7.8) subjected to IHT at 1453K. (C) 2015 AIP Publishing LLC.

引用

页数：4

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