Effects of heating processing on microstructure and magnetic properties of Mn-Zn ferrites prepared via chemical co-precipitation

被引:0
作者
Shijie Chen
Jingbing Xia
Jianqing Dai
机构
[1] Kunming University of Science and Technology,School of Materials Science and Engineering
来源
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2015年 / 30卷
关键词
Mn-Zn ferrites; chemical co-precipitation method; surface morphology; magnetic properties;
D O I
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中图分类号
学科分类号
摘要
The fine powders of Mn-Zn ferrites with uniform size were prepared via chemical co-precipitation method. X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), frequency dependence of permeability and metallographical microscope were used to investigate the crystal structure, surface topography and magnetic properties of the powders and the sintering samples. The experimental results demonstrate that the precursor powders have formed a pure phase cubic spinel MnxZn1−xFe2O4 while in the reactor and show definite magnetism, which can solve the difficult issue in washing process effectively. When calcined beneath 450 °C, the powders have intact crystal form and the crystallite size is less than 20 nm. Comparison tests of sintering temperatures show that 1 300 °C is the ideal sintering temperature for Mn-Zn ferrites prepared by using the chemical co-precipitation.
引用
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页码:684 / 688
页数:4
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