Preparation and Magnetic Properties of Dense NiCuZn Ferrite by Spark Plasma Sintering

摘要：

　　Dense NiCuZn ferrites consisting of fine grains were prepared by spark plasma sintering (SPS) at 750℃ for 3 min under a uniaxial pressure of 15 MPa.The powders were densified to >95% of theoretical density by the SPS process,and the average grain size of the prepared NiCuZn ferrite was < 1 μm.The saturation magnetization of prepared specimens (without further annealing treatment) was approximate 50.54 emu/g,which was slightly smaller than that of 52.21 emu/g for specimens prepared by conventional sintering at 980℃ for 4 h.Phase identifications indicated that prepared NiCuZn ferrite existed impurity phase (Cu2O),and Cu2O would gradually transform to CuO when annealing temperature increased.

关键词： Preparation Magnetic properties NiCuZn ferrite Spark plasma sintering (SPS)

作者: Xiwei Qi Ji Zhou Zhenxing Yue Mingya Li Xiumei Han

作者单位: Department of Materials Science and Engineering,Northeastern University at Qinhuangdao Branch,QinHua State Key Lab of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Ts

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 601-603

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）