Co^(2+)取代Ni^(2+)对MgNiCuZn铁氧体纳米微粒磁学性能的影响  

Effect of Co^(2+) Substitution on the Microstructure and Magnetic Properties of MgNiCuZn Ferrite Nanoparticles

作　　者：郭维[1] 王裕民 侯华[1] 蒋博[1] 葛昆[1] 周丽亚[1] 赵宇宏[1] 

机构地区：[1]中北大学材料科学与工程学院,山西太原030051 [2]山西汾西重工集团有限责任公司,山西太原030027

出　　处：《铸造设备与工艺》2014年第1期37-38,68,共3页Foundry Equipment & Technology

基　　金：山西省国际科技合作项目(2013081017;2012081013)

摘　　要：通过化学共沉淀法制备了纳米级的Mg0.05CoxNi0.35-xCu0.2Zn0.4Fe2O4铁氧体超细粉末,采用X射线衍射仪和振动样品磁强计分析研究了Co2+取代Ni2+对铁氧体结构和饱和磁化强度的影响。结果表明,试样的晶格参数a和平均粒径Dx随Co2+取代量的增加而增大;饱和磁化强度Ms随Co2+取代量的增加单调增大。In this paper, MgNiCuZn ferrite nanoparticles were prepared by chemical eoprecipitation method.The effect of Co2＋ substitution on microstructure and magnetic properties were investigated.It was found that after Ni2＋was replaced by appropriate Co2＋, all the samples could still form single spinel structure.Saturation magnetization increaseed with increasing Co2＋ content monotonously.

关 键 词：共沉淀法 MgNiCuZn 离子取代 饱和磁化强度 

分 类 号：TM277[一般工业技术—材料科学与工程]