sol-gel法制备Sr^2＋掺杂的MnZn铁氧体  

Preparation of Sr^(2+)-doped MnZn ferrite by sol-gel method

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》2009年第6期34-36,共3页Electronic Components And Materials

基　　金：河南省科技攻关计划项目(No.0424270148)

摘　　要：以铁、锰、锌和锶的硝酸盐为原料,以酒石酸为凝胶剂,采用sol-gel法制备了Sr2+掺杂的MnZn铁氧体(Mn0.6Zn0.4-xSrxFe2O4)。借助于XRD、SEM和振动样品磁强计(VSM)等表征手段,研究和分析了Sr2+掺杂量对所得MnZn铁氧体样品晶型、晶貌及磁性能的影响。结果表明:当Sr2+的掺杂量为0.10时,所得MnZn铁氧体样品的Ms为2.1646×105A/m。Magnetic materials of Sr^2＋- doped MnZn ferrites （Mn0.6Zn0.4-xSrxFe2O4） were prepared through sot-gel method using metal （Fe, Mn, Zn and Sr） nitrates as raw materials and tartaric acid as gelata. The influences of different Sr^2＋-doped amounts on the crystal phase, grain morphology and magnetic properties of the obtained MnZn ferrites were studied by using XRD, SEM and vibrating sample magnetometer （VSM）. The results show that MnZn ferrites own the biggest saturation magnetization of 2.164 6×10^5 A/m when the doped amount of Sr^2＋ is 0.10.

关 键 词：无机非金属材料 MNZN铁氧体 酒石酸 Sr2+掺杂 SOL-GEL法 

分 类 号：TQ174.756[化学工程—陶瓷工业]