Effects of thermal treatments on the microstructure and magnetic properties of spinel NiFe2O4-silica nanocomposites

被引：0

作者：

Li, GS ^{[1
]}

Wang, MQ

Li, LP

Feng, SH

Yao, X

机构：

[1] Xian Jiao Tong Univ, Elect Mat Res Lab, Xian 710049, Peoples R China

[2] Jilin Univ, Dept Phys, Changchun 130023, Peoples R China

[3] Jilin Univ, Key Lab Inorgan Synth & Preparat Chem, Changchun 130023, Peoples R China

来源：

FERROELECTRICS | 1999年 / 230卷 / 1-4期

关键词：

nanocomposites; Mossbauer effect; structural evolution;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of thermal treatments on the microstructure and magnetic properties of NiFe2O4-silica nanocomposites were investigated in this paper. The samples with matrices of silica and mullite gels were prepared by sol-gel processes at different calcination temperatures. The interactions between the magnetic nanocrystals and the matrices as well as the coordination state changes during the crystallization were revealed by Mossbauer spectroscopy. The results show that the sorts and the relative content of the matrix gels strongly affect the structural evolution of the nickel spinel from amorphous state to nanocrystallites.

引用

页码：369 / 374

页数：6

共 6 条

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