Improvement in magnetic properties of Sm-Fe-N flakes by annealing under Zn vapor

被引：0
|
作者：
Fukunaga, H [1 ]
Murakami, K
Song, JM
Koh, JG
机构：
[1] Nagasaki Univ, Fac Engn, Nagasaki 8528521, Japan
[2] Soong Sil Univ, Dept Phys, Seoul 156743, South Korea
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期
关键词：
coercivity; flakes; rapid quenching; remanence; Sm-Fe-N; stability of magnetic properties; Zn-treatment;
D O I：
10.1109/20.800504
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new method for improving the coercivity and stability of magnetic properties of Sm-Fe-N flakes by annealing under Zn vapor is proposed. Annealing of the flakes at 380 degrees C with Zn foil under an Ar atmosphere deposited a Zn film, resulted in formation of Fe-Zn compounds on the surface of the flakes, and improved the coercivity by 2-5 kOe. The deposition of approximately 1 wt.% Zn was enough to obtain a remarkable improvement in the coercivity. The Zn-treatment also suppressed the deterioration of the coercivity and the remanence due to exposure to air at 300 degrees C, and an increase in the amount of Zn caused an increase in their stability. Therefore, the proposed method is expected to be a promising method for improving magnetic properties and their stability of Sm-Fe-N flakes by Zn-treatment.
引用
收藏
页码：3298 / 3300
页数：3
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