材料工程
材料工程
재료공정
JOURNAL OF MATERIALS ENGINEERING
2015年
8期
72-76
,共5页
马玉启%刘先松%冯双久%黄鑫%黄风
馬玉啟%劉先鬆%馮雙久%黃鑫%黃風
마옥계%류선송%풍쌍구%황흠%황풍
NiZn功率铁氧体%Sn4+取代%起始磁导率%功率损耗
NiZn功率鐵氧體%Sn4+取代%起始磁導率%功率損耗
NiZn공솔철양체%Sn4+취대%기시자도솔%공솔손모
NiZn power ferrites%Sn4+ substitution%initial permeability%power loss
采用固相反应法制备化学计量为Ni0.65 Zn0.35 Snx Fe2- x O4(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S n4+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。
採用固相反應法製備化學計量為Ni0.65 Zn0.35 Snx Fe2- x O4(x=0.00~0.08)的鐵氧體軟磁材料。採用XRD、SEM、LCR測試儀、B‐H分析儀對其結構、電磁性能進行研究。結果錶明:隨Sn4+取代量 x的增加,晶格常數 a逐漸增大,晶粒呎吋變化不大,飽和磁通密度 Bs 逐漸下降,鐵氧體的起始磁導率μi 先上升後下降,功率損耗 Pcv與μi 的變化呈相反趨勢。噹S n4+的取代量 x=0.04時具有最低的功率損耗,且 Pcv隨著溫度的升高而逐漸降低。
채용고상반응법제비화학계량위Ni0.65 Zn0.35 Snx Fe2- x O4(x=0.00~0.08)적철양체연자재료。채용XRD、SEM、LCR측시의、B‐H분석의대기결구、전자성능진행연구。결과표명:수Sn4+취대량 x적증가,정격상수 a축점증대,정립척촌변화불대,포화자통밀도 Bs 축점하강,철양체적기시자도솔μi 선상승후하강,공솔손모 Pcv여μi 적변화정상반추세。당S n4+적취대량 x=0.04시구유최저적공솔손모,차 Pcv수착온도적승고이축점강저。
The stoichiometric Ni0.65Zn0.35SnxFe2 - xO4(x=0 .00‐0 .08) power ferrites soft magnetic ma‐terial was prepared by the solid‐state reaction method .The structural characteristics and electromag‐netic properties were investigated by X‐ray diffraction(XRD) ,SEM ,LCR tester ,B‐H analyzer ,respec‐tively .The results indicate that with increasing Sn4+ substitution amount ,lattice constant a increases gradually ,grain size varies not much ,saturation magnetic flux density Bs continuously decreases ,ini‐tial permeability μi of the ferrites increases initially and then decreases ,and pow er loss Pcv has an op‐posite change with μi .The power loss Pcv has a minimum value when the Sn4+ substitution amount is 0 .04 and Pcv decreases gradually w hen the temperature increases .