复合掺杂对NiCuZn铁氧体磁性能的影响  

Influence of composite doping on magnetic properties for NiCuZn ferrite

作　　者：李勇[1] 黄华伟[1] 王吉坤[1] 

机构地区：[1]昆明理工大学材料冶金工程学院,云南昆明650093

出　　处：《电子元件与材料》2007年第10期12-14,共3页Electronic Components And Materials

基　　金：国家火炬计划资助项目(03102022)

摘　　要：为了获得高初始磁导率(μi)、低损耗的NiCuZn铁氧体,研究了复合掺杂微量元素对其磁性能、电阻率和微观结构的影响。实验中加入了四组不同含量的微量元素,用了尼龙罐与钢罐两种球磨罐,结果表明:当掺入的Bi2O3,PbO,TiO2及Co3O4质量分数分别为0.11%,0.30%,0.01%及0.20%,在950℃烧结时,所获铁氧体的磁性能为:μi为480,电阻率为4×109Ω·m,Hc为44.5A/m。且钢罐球磨料的综合性能优于尼龙罐。In order to get NiCuZn ferrite with high ,μi and low loss, investigated were the effects of composite doping microamount elements on its magnetic properties, resistivity and microstructure. Four groups microamount elements and both of steel and nylon ball milled pots were used. Obtained results show that the magnetic properties of ferrites sintered at 950 ℃ are： 480 of μi, 4×10^9Ω m of resistivity, and 44.5 A/m of Hc when added amounts of Bi2O3, PbO, TiO2 and Co3O4 are respeedvely： 0.11%, 0.30%, 0.01% and 0.20% （in mass fraction）. Next, the comprehensive properties of ball milled powder in steel pot are better than nylon.

关 键 词：无机非金属材料 NICUZN铁氧体 复合掺杂 初始磁导率 

分 类 号：TQ174.45[化学工程—陶瓷工业]