低温烧结NiCuZn铁氧体的微结构和磁性能研究  

Study on Structure and Magnetic Properties of Low Temperature Sintered NiCuZn Ferrite Materials

作　　者：李强[1] 李元勋[1] 李颉[1] 郁国良[1] 左林[1] 王雨[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,成都610054

出　　处：《材料导报》2013年第6期5-7,共3页Materials Reports

基　　金：国家自然科学青年基金(61001025);电子薄膜与集成器件国家重点实验室开放基金(KFJJ201102);中央高校基本科研业务费(ZYGX2011X006)

摘　　要：采用固相法制备了Ni0.2Cu0.2Zn0.6Fe2O4铁氧体,在850℃进行预烧结,通过添加不同量的Bi2O3-HBO3-ZnO(BBZ)助熔剂,在不同温度烧结成型。研究了烧结温度和BBZ添加量对NiCuZn铁氧体材料微观结构和磁性能的影响。通过XRD、SEM、VSM和磁谱分析,结果表明,BBZ的加入起到了良好的低温烧结作用,在不同的烧结温度下性能呈现一定的规律。加入2%(质量分数)BBZ、950℃烧结的NiCuZn铁氧体晶粒生长较均匀,饱和磁化强度为51.9emu/g,起始磁导率μ′=349.9,磁谱损耗角正切值tanδ在0.02左右。The NiCuZn ferrites were prepared by solid state method. After pre-sintered at 850℃, the NiCuZn ferrites were sintered at different temperature with different contents of Bi203-HBO3-ZnO （BBZ） additives. The effects of sintering temperature and BBZ additives on structure and magnetic properties of NiCuZn ferrites were investigated. Using XRD, SEM, VSM and magnetic-spectral technology, it indicated that BBZ additives could lower the sintering temperature of ferrites, and showed a regular rule. The NiCuZn ferrites with 2 wt% BBZ and sintered at 950℃ had a excellent properties with symmetrical grain sizes, saturation magnetization of 51.9 emu/g, initial permeability of μ＇=349.9, and magnetic loss tanδ about 0. 02.

关 键 词：NICUZN铁氧体 低温共烧 BBZ助熔剂 

分 类 号：TM271[一般工业技术—材料科学与工程]