Preparation of Strontium Ferrite Powders by Mechanochemical Process

摘要：

Sr-ferrite powders were preparated by mechanochemical treatments using SrCO3 and Fe2O3 as raw materials. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM) were employed to evaluated the morphologies, structures and magnetic properties of samples. The results indicated that the starting mixture became amorphous stage after ball-milled for 30h, and single phase SrFel2O19 could be obtained after annealed at 900℃ for 2h. And the saturation magnetization was 58.2Am2/kg, and coercivity was 281.2 kA/m at room temperature. In comparison with the traditional firing method , the mechanochemical method benefited achieving the higher coercivity, which indicated that the samples had a better magnetic properties.

关键词： Sr-ferrite preparation mechanochemical process

作者: Juhua Luo

作者单位: Jiangsu Provincial Key Laboratory of EcoEnvironmental Materials Yancheng Institute of Technology Yancheng, China

会议类型: 国际会议

会议名称: 2010 International Conference on Nano Science and Technology(2010年IEEE纳米科技国际会议 ICNST2010)

会议地点: 成都

会议语种:英文

页码: 103-106

在线出版日期: 2010-12-17（万方平台首次上网日期，不代表论文的发表时间）