微量钴对NiCuZn铁氧体磁性能的影响  

Influence of Microamount Cobalt on the Magnetic Properties of NiCuZn Ferrites

作　　者：黄华伟[1] 王吉坤[1] 李济林 刘海定 

机构地区：[1]昆明理工大学材料冶金工程学院,云南昆明650093 [2]国家仪表功能材料工程技术研究中心,重庆400500

出　　处：《电子元件与材料》2006年第11期24-26,共3页Electronic Components And Materials

基　　金：国家火炬计划资助项目(No.03102022)

摘　　要：为了降低烧结温度,增大电阻率,掺杂了适量PbO,Bi2O3与TiO2。利用SEM、XRD、高精度LCR分析仪及振动样品磁强计等,研究了添加的微量钴对NiCuZn铁氧体微结构及磁性能的影响。结果表明:钴对铁氧体的tC、μi、Hc、ρ及Pcv均有明显的影响,当微量钴加入量为0.02时(摩尔比),μi的高频性能下降。In order to reduce sintering temperature and increase resistivity, suitable amounts of PbO, Bi2O3 and TiO2 were doped. The microstruture and magnetic properties of NiCuZn ferrite doped amount cobalt were investigated by XRD, SEM and vibrating sample magnetometer （VSM） etc. Obtained results show that doped microamounts of cobalt in NiCuZn freeite have remarkable influence of Curie temperature tc μi, He, resistivity p and power waste Pcv, especially μi. And the μi decreases in high-frequency section when doped amounts of cobalt is 0.02.

关 键 词：无机非金属材料 微量钴 NICUZN铁氧体 微结构 磁性能 

分 类 号：TM277[一般工业技术—材料科学与工程]