工艺参数对水热合成SrFe12O19六角铁氧体的影响  

Effect of process parameters on hydrothermal synthesis of SrFe12O19 hexagonal ferrite

作　　者：胡邦文 贾利军[1] 李俊龙 解飞[1] 张怀武[1] HU Bang-wen;JIA Li-jun;LI Jun-long;XIE Fei;ZHANG Huai-wu(State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China)

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：《磁性材料及器件》2020年第3期9-13,共5页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(51572041);四川省科技支撑计划资助项目(2017HH0052;2016GZ0245;2016GZ0261)。

摘　　要：采用水热法制备SrFe12O19六角铁氧体微晶,结合XRD、SEM和VSM测试,系统研究了初始压强、反应温度、氢氧根与硝酸根的摩尔比R(OH^-/NO^3-)、铁锶离子摩尔比R(Fe^3+/Sr^2+)等主要工艺参数对微晶样品的微观形貌、物相组成和磁性能的影响,得到最优化的合成工艺条件,成功制备出物相纯净的M型六角铁氧体微晶,比饱和磁化强度Ms达51 emu/g。In this paper,SrFe12O 19 hexagonal ferrites powder was prepared by hydrothermal method.The influences of initial pressure,reacting temperature,the mole ratio of hydroxide ion to nitrate ion R(OH^–/NO^3–),mole ratio of iron ion to strontium ion R(Fe^3+/Sr^2+)on the microstructures,phase composition and magnetic properties of the microcrystal specimens were analyzed by XRD,SEM and VSM measurements in detail,respectively.Pure M-type hexaferrite microcrystals were obtained under the optimal synthetic process conditions.The maximum saturation magnetization Ms is 51 emu/g.

关 键 词：水热法 M型六角铁氧体 形貌 相成分 磁滞回线 

分 类 号：TM277.2[一般工业技术—材料科学与工程]