Synthesis of Magnetic Manganese Ferrite

Synthesis of Magnetic Manganese Ferrite
张变芳
【期刊名称】《武汉理工大学学报：材料科学英文版》
【年(卷),期】2007(22)3
【摘要】MnFe2 O4 polycrystalline powders were prepared by the chemical coprecipitation method. When the reaction temperature is above
80℃,through depositing and washing,the MnFe2 O4 can be obtained directly without calcining.However,when it is below 80℃,we have to calcine the precursor in order to obtain MnFe2 O4 ,which does not result in pure spinal structure but a mixture of MnFe2 O4 andα-Fe2 O3 .The powders’ magnetic property was characterized with a Vibrating Sample Magnetometer.The phase structure,crystal size and lattice constant were presented by an X-ray diffractometer.In addition,the morphology of the powder was observed with a scan electron microscope and a transmission electron microscope.
【总页数】4页(P514-517)
【关键词】锰铁酸盐;多晶粉末;化学共沉积法;煅烧;磁性
【作者】张变芳
【作者单位】Department of Mathematics and Physics,Shijiazhuang Railway University
【正文语种】中文
【中图分类】TF64
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