溶胶-凝胶法制备Sr^(2+)取代Co_2Z及性能研究  

Properties of Sr^(2+)-doped Co_2Z Prepared by Sol-Gel Method

作　　者：杨锴[1] 刘颖力[1] 李元勋[1] 时攀[1] 漆伟成[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《压电与声光》2013年第3期404-407,共4页Piezoelectrics & Acoustooptics

基　　金：重点实验室开放基金资助项目(KFJJ201102);中央高校基本科研基金资助项目(ZYGX2011X006)

摘　　要：为了制备性能优良的Sr2+掺杂的Co2Z型六角钡铁氧体(Ba1.5Sr1.5Co2Fe24O41),利用溶胶-凝胶自蔓延法,通过改变烧结温度制备了Co2Z钡铁氧体粉末,对其相成分、微观形貌和磁性能进行了研究。结果表明,采用溶胶-凝胶自蔓延法在1 200℃烧结时可制备较纯的Co2Z相,此时材料杂相最少,晶粒生长均匀,结构致密,起始磁导率为3.3,截止频率大于1.8GHz,品质因数Q在1GHz时为3.6。Sr2＋-doped Coz Z type hexagonal barium ferrite materials （Ba1.5 Sr1.5 Co2 Fe24 O41 ） were prepared by the Sol-Gel self-propagating method to improve the performance of this material. Samples were sintering in different temperatures, the phase composition, morphology and magnetic properties of samples were investigated. The re- suits showed that the pure Coz Z phase could be prepared by Sol-Gel self-propagating method sintering at 1 Z00℃. At this point the mixed phase was at least with uniform grain growth. The initial permeability was 3.3, cutoff fre- quency was greater than 1.8 GHz, and quality factor was 3.6 at 1 GHz.

关 键 词：溶胶-凝胶法 Z型铁氧体 磁性能 相成分 Sr取代 

分 类 号：TM277[一般工业技术—材料科学与工程]