Preparation and characterization of CoFe2O4/SiO2 nano-composites

被引：0

作者：

Li Hai-Bo ^{[1
]}

Chen Jing-Yan

Liu Mei

Feng Ming

Hua Jie

机构：

[1] Jilin Normal Univ, Coll Phys, Siping 136000, Peoples R China

[2] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2007年 / 28卷 / 04期

关键词：

nano-composite material; CoFe2O4/SiO2; XRD; Mossbauer effect;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CoFe2O4/SiO2 nano-composites were prepared by the sol-gel method. The changes of gels during the heat treatment. and the structure, crystalline size, microstructure of CoFe2O4/SiO2 nano-composites were investigated by TG/DTA, XRD and Mossbauer Techniques. The results show that with the increase of the content of SiO2, the crystalline size of CoFe2O4 and internal magnetic fields decreased, while samples were transferred from magnetic order to superparamagneitc state.

引用

页码：614 / 616

页数：3

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