低温烧结H_3BO_3掺杂NiCuZn铁氧体的研究  

Study on Low-temperature Sintered H_3BO_3 Addition NiCuZn Ferrite

作　　者：庞尔楠[1] 赵宇宏[2] 侯华[2] 

机构地区：[1]山西机电职业技术学院材料系,山西长治046011 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《热加工工艺》2013年第20期131-133,共3页Hot Working Technology

摘　　要：采用化学共沉淀法制备了Ni0.2Cu0.2Zn0.6Fe2O4铁氧体粉末,研究了烧结工艺及H3BO3含量对材料显微结构和电磁性能的影响。研究表明:当H3BO3含量为1%时,烧结温度为900℃、保温时间为4h后得到的NiCuZn铁氧体材料,其晶粒较为均匀、结构致密并且具有良好饱和磁化强度;在上述条件下得到的NiCuZn铁氧体烧结密度为4.62 g/cm3,饱和磁化强度为65.55 emu/g。Ni_0.2Cu_0.2Zn_0.6Fe_2O_4 ferrite was prepared by co-precipitation method. The effects of sintering technology and boric acid doping on the microstrueture and magnetic properties of ferrite were investigated. The results indicate that when H3BO3 content is 1%, the sintering temperature is 900 ℃, holding time is 4 it, it can obtain NiCuZn ferrite with uniform crystal grains, compact structure and good saturation magnetization. By the optimization of process parameters, the density of NiCuZn ferrite after sintered is 4.62 g/cm3, the saturation magnetization is 65.55 emu/g.

关 键 词：NICUZN铁氧体 化学共沉淀法 硼酸 

分 类 号：TG111.92[金属学及工艺—物理冶金]