Structures and magnetic properties of Co powder milled with SiO2 powder

被引：2
|
作者：
Saito, T [1 ]
Saito, H
机构：
[1] Chiba Inst Technol, Dept Met Engn, Chiba 2750016, Japan
[2] Chiba Inst Technol, Ctr Mat Anal, Chiba 2750016, Japan
来源：
JOURNAL OF MATERIALS SCIENCE LETTERS | 2002年 / 21卷 / 24期
关键词：
D O I：
10.1023/A:1021636025391
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical alloying of Co powder with SiO2 powder was studied and found to lead to the transformation of hcp Co into fcc Co. The saturation magnetization of the powder mixture of Co and SiO2 remained the same, but the coercivity increased as the milling time increased. The powder mixture of Co and SiO2 milled for 100 h showed a high coercivity of 43.8 kA/m with a high saturation magnetization of 79 emu/g. However, extended milling over 100 h resulted in a decrease in both the coercivity and the saturation magnetization.
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页码：1895 / 1897
页数：3
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