Influence of stoichiometry on hexaferrite structure

被引：42

作者：

Surig, C ^{[1
]}

Hempel, KA ^{[1
]}

Sauer, C ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST FESTKORPERFORSCH, D-52428 JULICH, GERMANY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 157卷

关键词：

hexaferrite; barium surplus; stoichiometry;

D O I：

10.1016/0304-8853(95)01201-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Barium hexaferrite particles prepared by several techniques yield best magnetic characteristics if a certain barium surplus is used. In the case of unsubstituted sol-gel-derived barium hexaferrites, highest values of the specific saturation magnetization occur in powders with n = Fe2O3/BaO = 5.25 in the starting composition. Best magnetic properties are in coincidence with an ideal occupancy of the 12k sites in the magnetoplumbite structure.

引用

页码：268 / 269

页数：2