Ti-Mn-Cu替代的M-型钡铁氧体的制备和表征  

Synthesis and characteristic of Ti-Mn-Cu substituted barium ferrite

作　　者：陈宏[1] 李凯[1] 郭亚军[1] 王华[1] 司宝财[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001

出　　处：《化学工程师》2007年第3期5-6,9,共3页Chemical Engineer

基　　金：黑龙江省自然科学基金资助项目(A9923);哈尔滨工程大学基础研究基金项目(HEUF04063)

摘　　要：本文利用共沉淀-熔盐法制备了Ti、Mn和Cu掺杂的BaFe8(Ti0.5MnCu)2O12,借助X射线衍射仪(XRD),扫描电镜(SEM),磁强计(VSM)等分析手段对样品进行了表征。结果表明:制备的样品呈现明显的平面六角形结构,粒径在50nm左右。经过预烧工艺助熔剂对样品粒径的影响很小,对样品形貌的影响很大,在质量比为0.75∶1时获得最佳的磁性能σS(26.58 e.m.u.g-1),Hc(3580 Oe),σr(15.18e.m.u.g-1)。Ti -Mn -Cu substituted barium ferrite have been prepared by coprecipitation -fused- salt methed. XRD, SEM and VSM have been used to investigate on crystallite size, morphology and magnetic properties. The result showed that the crystallite size is about 50nm;after preheating, the effect of flux on crystallite size is very limited and on morphology is obvious;the Na/Sample mass ratio of 0.75 the best magnetic properties is achieved σs（26.58e.m.u·g^-1, Hc（3580 Oe）, σr（26.58e.m.u·g^-1.

关 键 词：共沉淀-熔盐法 预烧 磁性能 

分 类 号：O782.4[理学—晶体学]