Magnetic Properties of Ga Doped Nd-Fe-B Sintered Magnets

被引：0

作者：

刘金芳

罗河烈

潘树明

聂向富

侯登录

机构：

[1] Magnetism Laboratory Institute of Physics

[2] Chinese Academy of Sciences

[3] Beijing

[4] China

[5] Magnetism Laboratory

[6] Institute of Physics

[7] General Research Institute for Non-Ferrous Metals

[8] Department of Physics

[9] Hebei Normal University

[10] Shijiazhuang City

[11] Hebei Province

来源：

JournalofRareEarths | 1991年 / 01期

关键词：

Magnetic properties; Sintered magnets;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

<正> The magnetic properties of Nd16Fe77B7 and Nd16Fe（61-x）Co16GaxB7（x=0,1,2,4,7）have been measured.Itis found that the remanent magnetization（Br）,maximum energy product（BH）maxand the Curie temperature（Tc）decrease with the increase of Ga content.The coercive force（He）increases with the increase of Ga contentwhen x is less than 2,but decreases when x>2.At x=2,the coercive force reaches its maximum value.It is alsofound in all the samples investigated that there is a linear relationship between Hc1/2and T2/3,which can not beexplained by Gaunt's wall barrier model.The temperature dependence of the calculated values of Hv and（4bf）has been discussed.

引用

页码：47 / 50

页数：4