PREPARATION OF COBALT-DOPED AND FLUORINE-DOPED BARIUM HEXAFERRITE BY THE GLASS SYNTHESIS METHOD

被引：4

作者：

ZAGNAZI, H

MALASSIS, M

CHAUMONT, C

BERNIER, JC

机构：

[1] I.P.C.M.S, Groupe de Chimie Des Matériaux Inorganiques, E.H.I.C.S, Strasbourg

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 01期

关键词：

crystallization; ferrites; fluorine; glass; synthesis;

D O I：

10.1111/j.1151-2916.1990.tb05115.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Doped barium hexaferrite (BaFe12‐xCoxO19‐xFx) was prepared by the glass synthesis method. The fluorine improves the pouring of the melt and the crystallization of the glass, while the cobalt decreases the coercive force. Addition of Al2O3 does not significantly alter the properties of barium hexaferrite, but it increases the crystallization. Doped products are attractive for high‐density vertical magnetic recording (1400 < Hc < 2300 Oe, 60 < σs < 68 (emu cgs)/g, and σr/σs≃ 0.5). Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：167 / 169

页数：3

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