磁场辅助水热法合成α-Fe_2O_3粒子研究  

Effect of magnetic field on hydrothermal synthesis of α-Fe_2O_3 particles

作　　者：吴明在[1,2] 赵修彬[1] 杜显振[1] 刘艳美[1] 刘先松[1,2] 马永青[1] 

机构地区：[1]安徽大学信息材料与器件重点实验室,安徽合肥230039 [2]安徽大学安徽省磁性材料工程技术研究中心,安徽合肥230039

出　　处：《武汉科技大学学报》2012年第3期195-197,210,共4页Journal of Wuhan University of Science and Technology

基　　金：安徽省自然科学基金资助项目(11040606M49);安徽省高校自然科学基金资助项目(KJ2012A007;KJ2010A012)

摘　　要：以氯化铁(FeCl3.6H2O)为反应前驱物,采用磁场辅助水热法合成α-Fe2O3粒子,并运用XRD、TEM、VSM对所得α-Fe2O3粒子的结构、形貌以及室温磁性能进行研究。结果表明,在水热反应过程中引入外磁场,对合成的α-Fe2O3粒子晶粒尺寸、粒径分散性有明显的影响,同时还发现磁场的引入能使产物饱和磁化强度增强。In the presence of magnetic field, α-Fe2O3 particles were synthesized by hydrothermal meth- od using FeCl3 · 6H2O as starting materials. XRD, TEM and VSM measurements were carried out of the particles to investigate their structure, morphology and magnetic property. The results show that the introduction of magnetic field has an obvious influence on the grain size and particle dispersion of α-Fe2O3 particles, and it can also enhance the saturated magnetization of the product.

关 键 词：氧化铁 磁场 水热法 磁性能 

分 类 号：TB382[一般工业技术—材料科学与工程]