Structure and magnetic properties of sintered SrFe12O19 ferrite powders prepared by hydrothermal method

被引：0

作者：

Cao, Chun-Xiang ^{[1
]}

Hu, Xu-Zhao ^{[2
]}

Xia, Ai-Lin ^{[2
]}

机构：

[1] Analysis and Testing Central Facility, Anhui University of Technology, Maanshan , China

[2] School of Materials Science and Engineering, Anhui University of Technology, Maanshan , China

来源：

Rengong Jingti Xuebao/Journal of Synthetic Crystals | 2014年 / 43卷 / 11期

关键词：

Magnetic properties - Nanocrystalline powders - Iron compounds - Ferrite - Powders - Sintering - Nanocrystals - Saturation magnetization - Phase structure;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

M-type SrFe12O19 ferrite powders were synthesized via a hydrothermal method, and their structure and magnetic properties before and after sintering were studied. It is found that all the as-synthesized and sintered specimens exhibit single phase structure. After sintering, the coercivity and saturation magnetization increase markedly from 42.9 kA/m and 48.1 emu/g to 237.8 kA/m and 64.9 emu/g, respectively, which can be attributed to the growth of grains at high temperature. It is also observed the remanence enhancement in sintered specimens, which could be ascribed to the exchange coupling between nanocrystalline magnetically hard grains.

引用

页码：2870 / 2873