Sn^(4+)取代对NiZn功率铁氧体磁性能的影响  

Influence of Sn^(4+) Substitution on Magnetic Properties of NiZn Power Ferrites

作　　者：马玉启 刘先松[1] 冯双久[1] 黄鑫[1] 黄风[1] 

机构地区：[1]安徽大学物理与材料科学学院磁性材料安徽省工程技术研究中心,合肥230601

出　　处：《材料工程》2015年第8期72-76,共5页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(51072002;51272003);安徽省教育厅重点科研项目资助(KJ2010A008;KJ2012A027);2013年度安徽省级自然科学研究项目资助(KJ2013B293);高等学校博士学科点专项科研基金资助(20123401110008)

摘　　要：采用固相反应法制备化学计量为Ni0.65Zn0.35SnxFe2-xO4(x=0.00~0.08)的铁氧体软磁材料。采用XRD、SEM、LCR测试仪、B-H分析仪对其结构、电磁性能进行研究。结果表明:随Sn4+取代量x的增加,晶格常数a逐渐增大,晶粒尺寸变化不大,饱和磁通密度Bs逐渐下降,铁氧体的起始磁导率μi先上升后下降,功率损耗Pcv与μi的变化呈相反趋势。当Sn4+的取代量x=0.04时具有最低的功率损耗,且Pcv随着温度的升高而逐渐降低。The stoichiometric Ni0.65Zn0.35SnxFe2-xO4（x=0.00-0.08）power ferrites soft magnetic material was prepared by the solid-state reaction method.The structural characteristics and electromagnetic properties were investigated by X-ray diffraction（XRD）,SEM,LCR tester,B-H analyzer,respectively.The results indicate that with increasing Sn4＋ substitution amount,lattice constant aincreases gradually,grain size varies not much,saturation magnetic flux density Bscontinuously decreases,initial permeabilityμiof the ferrites increases initially and then decreases,and power loss Pcvhas an opposite change withμi.The power loss Pcvhas a minimum value when the Sn4＋ substitution amount is 0.04 and Pcvdecreases gradually when the temperature increases.

关 键 词：NiZn功率铁氧体 Sn4+取代 起始磁导率 功率损耗 

分 类 号：TB383[一般工业技术—材料科学与工程]