HEXAFERRITE MAGNETIC-MATERIALS PREPARED BY MECHANICAL ALLOYING

被引：59

作者：

DING, J

MAURICE, D

MIAO, WF

MCCORMICK, PG

STREET, R

机构：

[1] Research Centre for Advanced Mineral and Materials Processing, The University of Western Australia, Nedlands

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 150卷 / 03期

关键词：

D O I：

10.1016/0304-8853(95)00279-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure and properties of hexaferrites in the form of MFe(12)O(19) with M = Ba, Sr and Pb prepared by mechanical alloying and heat treatment have been studied. Coercivities of 6-7 kOe were measured for Ba- and Sr-hexaferrite powders. The high values of coercivities have been associated with small particle sizes (similar to 0.1 mu m) resulting from the mechanical alloying and subsequent heat treatment. High-coercivity anisotropic samples have been synthesized using hot-pressing, with remanences of 70-75% of the saturation magnetisation being obtained.

引用

页码：417 / 420

页数：4

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