High coercivity in mechanically alloyed BaFe10Al2O19

被引：48

作者：

Wang, S ^{[1
]}

Ding, J ^{[1
]}

Shi, Y ^{[1
]}

Chen, YJ ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mat Sci, Singapore 119260, Singapore

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 219卷 / 02期

关键词：

hexaferrite; mechanical alloying; high coercivity;

D O I：

10.1016/S0304-8853(00)00450-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-substituted Ba-ferrite in the form of BaFe10Al2O19 was prepared by mechanical alloying and subsequent heat treatment. Their structure and magnetic properties were investigated in comparison with Ba-ferrite without Al substitution. After annealing at 1100 degrees C, a coercivity as high as 9.3 kOe was measured, while the coercivity values of the Ba-ferrite samples without Al substitution with a similar particle size were observed in the range of 5-6 kOe. A significant reduction of saturation magnetization was observed as compared to pure barium ferrite. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：206 / 212

页数：7

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