The influence of Mn doping level on magnetostriction coefficient of cobalt ferrite

被引：86

作者：

Caltun, Ovidiu ^{[1
]}

Rao, G. S. N.

Rao, K. H.

Rao, B. Parvatheeswara

Dumitru, Ioan

Kim, Chong-Oh

Kim, CheolGi

机构：

[1] Alexandru Ioan Cuza Univ, Dept Solid State & Theoret Phys, Iasi 700506, Romania

[2] Andhra Univ, Dept Phys, Visakhapatnam 530003, Andhra Pradesh, India

[3] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 316卷 / 02期

关键词：

manganese doped cobalt ferrites; microstructure; magnetomechanical properties;

D O I：

10.1016/j.jmmm.2007.03.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cobalt ferrite materials with different concentrations of manganese additions have been prepared by conventional ceramic technique. The samples were sintered for 5 h in air at 1180 degrees C followed by natural cooling. Microstructures of the materials reveal that cobalt additions influence the average grain size and the pore distribution. The X-ray analysis proves the existence of the spinel structure. The doping level decreases the Curie temperature and increases the magnetostriction coefficient. By adjusting manganese content and the sintering process parameters the material properties should be optimized for use in magnetomechanical stress sensors. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：E618 / E620

页数：3

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