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CoFe2O4/SiO2纳米复合材料的制备及其磁性

李海波1,2, 陈敬艳1, 刘梅1, 孟祥东1   

  1. 1. 吉林师范大学 物理学院, 吉林省 四平 136000; 2. 吉林大学 超硬材料国家重点实验室, 长春 130012
  • 收稿日期:2006-07-31 修回日期:1900-01-01 出版日期:2007-05-26 发布日期:2007-05-26
  • 通讯作者: 李海波

Preparation and Magnetic Properties of CoFe2O4/SiO2Nano-composites

LI Hai bo1,2, CHEN Jing yan1, LIU Mei1, MENG Xiang dong1   

  1. 1. College of Physics, Jilin Normal University, Siping 136000, Jilin Province, China; 2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
  • Received:2006-07-31 Revised:1900-01-01 Online:2007-05-26 Published:2007-05-26
  • Contact: LI Hai bo

摘要: 采用溶胶-凝胶法制备(CoFe2O4x/(SiO21-x纳米复合材料. 利用X射线衍射(XRD)和振动样品磁强计(VSM)研究样品结构、 晶粒尺寸及磁性. 结果表明, 随SiO2含量增加, 样品的晶粒尺寸减小, 比饱和磁化强度和矫顽力降低. 

关键词: 纳米复合材料, CoFe2O4/SiO2, 结构, 磁性

Abstract: CoFe2O4/SiO2 nano-composites were prepared via the sol-gel method. Structure, grain size and magnetic properties of CoFe2O4/SiO2 nano-composites were investigated by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that with the increase of the content of SiO2, the grain size, the saturation magnetization and coercivity of samples decrease. 

Key words: nano-composite, CoFe2O4/SiO2, structure, magnestism

中图分类号: 

  • O482.5