(上海大學(xué) 上海市現(xiàn)代冶金與材料制備重點(diǎn)實(shí)驗(yàn)室，上海 200072)
摘 要:
關(guān)鍵字: MnZn鐵氧體；強(qiáng)磁場；燒結(jié)；取向
（Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai 200072, China）
Abstract:The mixtures of Fe2O3, MnO and ZnO were sintered without or with 8 T static magnetic field, respectively. The sintered MnZn ferrite (MZF) samples in these two cases were characterized by XRD, SEM, VSM and etc. The results show that compared with MZF sintered without magnetic field, (511) plane of MZF sintered in 8 T static magnetic field is strongly oriented along the magnetic field direction. The oriented crystal texture appears in the sample sintered in 8 T static magnetic field, whose density is enhanced remarkably. The magnetic properties are increased. Especially, its relative magnetic permeability along the magnetic field direction is evaluated by about 130%. For MZF sintered in 8 T static magnetic field, the saturation magnetization along the magnetic field direction is increased by 7.56% compared with that along the vertical magnetic field direction, while its residual magnetization is reduced by 48.19%.
Key words: MnZn ferrite; high static magnetic field; sintering; orientation
