Magnetic properties and remanence analysis in permanently magnetic BaFe12O19 foams

被引：29
|
作者：
Topal, Ugur [1 ]
Bakan, Halil I. [2 ]
机构：
[1] TUBITAK, UME Natl Metrol Inst, TR-41470 Gebze, Kocaeli, Turkey
[2] TUBITAK, MAM, Mat Inst, TR-41470 Gebze, Kocaeli, Turkey
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2010年 / 30卷 / 15期
关键词：
Porous materials; Permanent magnets; Exchange coupling; Remanence properties; BARIUM FERRITE MEDIA; SYSTEMS; FIELDS; THIN;
D O I：
10.1016/j.jeurceramsoc.2010.06.008
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：
In the present study, magnetic properties of barium ferrite foams were investigated. We especially examine the effects of porosity on interparticle interactions and remanence properties of these materials. It was observed that magnets become harder with porosity. On the other hand, saturation magnetization decreases slightly. Existence of porosities increases the strength of demagnetising-like interactions of neighboring particles. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3167 / 3171
页数：5
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