EFFECT OF NITROGEN-CONTENT ON MAGNETIC-PROPERTIES OF SM2FE17NX (0-LESS-THAN-X-LESS-THAN-6)

被引：210

作者：

IRIYAMA, T ^{[1
]}

KOBAYASHI, K ^{[1
]}

IMAOKA, N ^{[1
]}

FUKUDA, T ^{[1
]}

KATO, H ^{[1
]}

NAKAGAWA, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1992年 / 28卷 / 05期

关键词：

D O I：

10.1109/20.179482

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：

Effects of nitrogen content on crystal structure and magnetic properties have been investigated in Sm2Fe17Nx. The Sm2Fe17Nx specimens with 0<x<6 were prepared by nitrogenating Sm2Fe17 in a mixed-gas atmosphere of NH3 and H-2. All of these specimens were confirmed to have the same crystal structure as Sm2Fe17, although they did not always consist of the single phase. Both saturation magnetization 4-pi-I(s) and anisotropy field H(a) took the maximum values at x=3.0 (4-pi-I(s)=15.7 kG, H(a)=260 kOe). The large coercivity was observed in the specimens of fine grain powders. Anisotropic powder magnets were fabricated by aligning and compacting the fine grain powders; the highest value of (BH)max was 21 MGOe for x=3.0.

引用

页码：2326 / 2331

页数：6

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