用常规添加剂生产的高性能永磁铁氧体  

High performance permanent ferrite made using regular additives

作　　者：吴永路 邱新明 袁小镇 邱士星 

机构地区：[1]宝钢集团上海梅山有限公司资源分公司,江苏南京210039

出　　处：《磁性材料及器件》2012年第5期55-56,76,共3页Journal of Magnetic Materials and Devices

摘　　要：用南京梅山酸洗铁红预烧料(MYF30H),复合添加常规添加剂CaCO3-SiO2-Cr2O3-NH4HCO3(Cr2O3不超过1wt%),探索生产高性能永磁铁氧体材料。在复合添加CaCO3-SiO2-Cr2O3-NH4HCO3的基础上,加入少量的Al2O3,样品磁性能达到Br≥395mT,Hcj≥318kA/m水平的同时,还可以拓宽烧结温区并降低烧结温度。Using Nanjing Meishan pre-sintered material （MYF30H） from acid pickling iron oxide red, permanent ferrite material was produced by using CaCO3-SiO2-Cr2O3-NH4HCO3 （Cr203 additive less than lwt%） composite additives. Based on using CaCO3-SiO2-Cr2O3-NH4HCO3 composite additives, magnetic properties of Bt≥395mT and Hcj≥318kA/m were obtained by adding a small amount of Al2O3. Sintering temperature was lowered down and the sintering temperature region was expanded as well.

关 键 词：锶铁氧体 添加剂 磁性能 

分 类 号：TM273[一般工业技术—材料科学与工程]