三种凝胶剂对MnZn铁氧体性能的影响  

Influence of three kinds of gelator on the properties of MnZn ferrite

作　　者：席国喜[1,2] 刘玉民[1] 戚世梅[1] 路迈西[2] 

机构地区：[1]河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,河南新乡453007 [2]中国矿业大学化学与环境工程学院,北京100083

出　　处：《电子元件与材料》2008年第11期32-35,共4页Electronic Components And Materials

基　　金：河南省科技攻关计划资助项目(No.0424270148)

摘　　要：以铁、锰和锌的硝酸盐为原料,分别以柠檬酸铵、酒石酸或EDTA为凝胶剂,采用有机物络合sol-gel法制备了MnZn铁氧体。借助XRD、SEM和振动样品磁强计(VSM)等表征手段,研究和比较了三种凝胶剂对所得MnZn铁氧体产品的晶型、晶貌及磁性能的影响。结果表明:以柠檬酸铵为凝胶剂时,所得MnZn铁氧体的磁性能最佳:其Ms达到1.1237×105A/m,而Hc仅为1.6716×103A/m。MnZn ferrites were prepared through the organic compound complex sol-gel method by using metal （Fe, Zn and Mn） nitrates as raw materials and ammonium citrate, tartaric acid or EDTA as gelator, respectively. The influences of three kinds of gelator on the crystal phase, crystal morphology and magnetic properties of obtained MnZn ferrites were studied and compared by using XRD, SEM and vibrating sample magnetometer （VSM）. The results show that MnZn ferrites prepared by using and compared as gelator own the best magnetic properties and its Ms reaches 1.123 7 ×10^5 A/m and Hc is only 1.671 6 × 10^3 A/m.

关 键 词：无机非金属材料 MNZN铁氧体 柠檬酸铵 酒石酸 EDTA 

分 类 号：TQ174.756[化学工程—陶瓷工业]