LaCo取代M型钡铁氧体致密化及磁性能研究  

Research on Densification and Magnetic Properties of LaCo-substituted M-type Barium Ferrite

作　　者：刘梦秋[1] 杨艳[2] 孙科[1] 余忠[1] 邬传健 蒋晓娜[1] 郭荣迪[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,成都610054 [2]成都工业学院通信工程系,成都611730

出　　处：《人工晶体学报》2015年第6期1485-1489,共5页Journal of Synthetic Crystals

基　　金：国家自然科学基金(51472045)

摘　　要：用固相法制备M型钡铁氧体Ba1-xLaxFe12-xCoxO19（x=0~0.45）,研究了取代量和烧结温度对材料致密化及磁性能的影响。结果表明,烧结样品的密度随烧结温度的升高而逐渐增大,并趋于稳定;在相同的烧结温度下,烧结样品的密度随取代量的增加而减小。在1050℃烧结时,饱和磁化强度MS随取代量的增加而减小,磁晶各向异性场Ha随取代量的增加先增加后减小,Ha在取代量x=0.3时取得极大值630 k A/m。M-type barium ferrite Ba1-xLaxFe12-xCoxO19（ x = 0-0. 45） were synthesized by solid-state method. The effect substituted amount and sintering temperature on the density and magnetic properties of materials were studied. The results show that the density of samples sintered at the same temperature decreases with the increasing of the substituted amount and the density of samples with the same substituted amount increases as the sintering temperature increasing. The saturation magnetization of sample sintered at 1050 ℃ decreases as the substituted amount increasing,and the anisotropy field first increases then decreases as the substituted amount increasing,the maximum of anisotropy field is 630 k A / m while the substituted amount x = 0. 3.

关 键 词：M型钡铁氧体 致密化 饱和磁化强度 磁晶各向异性场 

分 类 号：TM277[一般工业技术—材料科学与工程]