黄钠铁矾渣制备镍锌铁氧体及其表征

Investigation of the synthesis and characterization of Ni-Zn ferrite prepared by sodium jarosite residue

利用化学共沉淀法,以黄钠铁矾渣为原料制备镍锌铁氧体。以正丁胺为沉淀剂,在室温条件下,通过共沉淀铁、镍、锌(镍、锌由硫酸锌、硫酸镍按Ni0.5Zn0.5Fe2O4比例补加)制备镍锌铁氧体样品。采用SEM、XRD和FT-IR对该样品进行表征。结果表明,制备所得的样品为镍锌铁氧体。同时,通过磁滞回线显示,镍锌铁氧体比饱和磁化强度为9.04A·m2/kg,比剩余磁化强度为0.65 A·m2/kg,矫顽力为2.47kA/m,具有软磁材料的低比剩余磁化强度和低矫顽力的特性。

The Ni-Zn ferrite was synthesized with sodium jarosite residue through co-precipitation method.The preparation of Ni-Zn ferrite by co-precipitation of iron,nickel and zinc(provided by nickel sulfate and zinc sulfate)with n-butylamine at room temperature was reported.SEM,XRD and FT-IR etc technologies were adopted to investigate properties of the synthesized samples in detail.And,the results of hysteresis loops showed that the specific saturation magnetization,specific remanence and coercovity of the Ni-Zn ferrite were 9.04,0.65A·m2/kg and 2.47kA/m,respectively,possessing characters of low specific remanent magnetization and coercivity of soft magnetic materials apparently.