低温快速烧结软磁铁氧体材料  

Fast Sintering Soft Ferrite Materials at Low Temperature

作　　者：王依琳[1] 吴文骏[1] 毛文东[1] 赵梅瑜[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050

出　　处：《无机材料学报》2003年第3期601-605,共5页Journal of Inorganic Materials

基　　金：MOTOROLA CTRL资助

摘　　要：研究了Bi_2O_3-V_2O_5系复合添加剂对Ni-Cu-Zn铁氧体的烧结及其磁性能的影响.研究表明,Bi_2O_3-V_2O_5系复合添加剂具有促进晶粒生长的作用,随着添加量的增加,样品断面形貌显示大晶粒增多,X射线衍射分析表明,过多的添加剂引起少量的杂相析出,晶界变宽。然而,适当量的Bi_2O_3-V_2O_5系复合添加剂能使普通Ni-Cu-Zn铁氧体的烧结温度降至875℃以下,烧结时间缩短为30min,烧结样品的磁导率可达195(10MHz)。The effects of Bi2O3-V2O5 on sinterability and magnetic properties were investigated. The results show that, the addition of Bi2O3-V2O5 can accelerate the grains growing. The morphology of the sample's section shows large grains increasing in direct ratio with amount of the addition. XRD patterns confirm that a small amount of unknown phases appear and the grain boundary becomes more thick with an increace of the amount of the additive. But, this addition of sintering aids can lower the sintering temperature to less than 875degreesC, and shorten soaking time to 30min for Ni-Cu-Zn ferrite. The permeability of the ferrite added 1wt% the sintering aids can reach to 195 at 10MHz.

关 键 词：低温烧结 软磁铁氧体 烧结助剂 

分 类 号：TM271[一般工业技术—材料科学与工程]