摘要
采用陶瓷工艺制备了M型高性能稀土永磁铁氧体cal-xLaxFe11.99-xCoxB0．005Zr0.008O19，X=0～0．4，用永磁铁氧体测量仪、浮力法、惠斯顿电桥法、产品压力试验机对产品相关磁特性进行了检测。结果表明，同时添加适量的促进产品液相烧结的助溶剂CaO—SiO2-We2O3，在特定的工艺条件下，当x=0～0．3时，产品的Bx、Hcb、Hcj等参数随x的增加而显著提高；但当X达到0．4时，Br缓慢变化，但产品的Hcb、Hcj开始下降；当X达到0．5时，磁性能随取代量x的增加而急剧下降。
M-type Tombarthite Permanent Ferrite Ca1 - x Lax Fe 11.99 - X CoX Bo. 005 Zr0. 005 O 19, X =- 0 - 0. 4, is prepared by adopting ceramics. The related magnetic properties of the products are performed by the permanent ferrite meters, buoyancy ,Wheatstone bridge method and pressure testing machines. The results show that when X = 0 -0. 3, the addition of an appropriate amount of cosolvents CaO-SiO2-Fe2O3 which can promote liquid phase sintering leads to the significant increase of Br, Hcb and Hcj. When X = 0.4, Br changes slowly but Hob and Hcj begin to decline. When X reaches 0. 5, the magnetic properties decrease dramatically with the increase of the substitution for X.
出处
《现代化工》
CAS
CSCD
北大核心
2015年第9期88-92,共5页
Modern Chemical Industry
基金
四川省重点科研项目(2013GC0109)
关键词
稀土永磁铁氧体
助溶剂
工艺
磁性能
tombarthite permanent ferrite
cosolvent
process
magnetic properties
