Grain Growth, Grain Boundary and Oriented Growth of Bi203 Doped MnZn Ferrite

摘要：

MnZn ferrites with a nominal composition of Mn0.51Zn0.41Fe2.08O4 were prepared by conventional oxide ceramic process. The effects of Bi2O3 on grain growth, grain boundary and oriented growth of MnZn ferrites were investigated by means of characterizing the fracture surface micrograph by scanning electron microscope (SEM), composition of grain boundary by the energy dispersive X-ray spectroscope (EDS) and crystal phase by X-ray diffraction (XRD). The results indicate that Bi2O3 mainly segregates and concentrates in the grain boundary regions, promotes solid state reaction and grain growth, reduces porosity and causes grains to be more homogeneous. But excessive addition of Bi2O3 induces preferential oriented growth of MnZn ferrites in the <311> orientation.

关键词： MnZn ferrite Bi2O3 addition grain boundary oriented growth

作者: Z.Yu X.N.Jiang L.Z.Li K.Sun Z.Y.Xu Z.W.Lan H.W.Zhang

作者单位: State Key Lab of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technologyof China,Chengdu 610054,Siehuan,China

会议类型: 国际会议

会议名称: The 10th International Conference on Ferrites(2008中国国际铁氧体研讨会)

会议地点: 成都

会议语种:英文

页码: 231-233

在线出版日期: 2008-10-10（万方平台首次上网日期，不代表论文的发表时间）