掺杂对平面六角Z型铁氧体晶相组成及磁性能的影响  

Effect of Doping on Crystalline Phases and Magnetic Properties of Z-Hexaferrite

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：《电子元件与材料》2002年第5期8-10,共3页Electronic Components And Materials

基　　金：MOTOROLA资助项目

摘　　要：着重探讨不同种类及含量的烧结助剂在烧结过程中对Ba1.5Sr1.5Co2Fe24O41相结构的影响,当Bi2O3的添加量(质量分数)为0.5%时,它具有促进烧结和提高磁导率的作用,且主晶相为Z相。随着添加量的增加,Z相逐渐减少,M和Y相成为主晶相。若添加LiF,则使Z相更难于形成。而磁导率的变化则取决于主晶相结构。The effects of sintering additives with different composition and proportion on the crystalline phases of Ba1.5Sr1.5Co2Fe24O41 hexaferrite during sintering were investigated. Bi2O3 can enhance the densification of hexaferrite and the forming of Z-type phase. The permeability of hexaferrite can be increased when small amount of Bi2O3 was added. But the amounts of Z-type phase was decreased and M-type, Y-type phases were increase with increasing of Bi2O3 It was difficult to form Z-type phase when LiF was used as additive. The permeability of hexaferrite was dependent on the structure of the main crystalline phase.

关 键 词：平面六角Z型 铁氧体 低温烧结 掺杂 磁性能 晶相组成 

分 类 号：TM27[一般工业技术—材料科学与工程]