采用化学包覆法,以氨水为沉淀剂,在碱性体系中制备了Fe(OH)3包覆T-ZnOw复合粉体,在600℃下通氢气还原获得了Fe/T-ZnOw包覆复合粉体.用XRD,SEM和EDX对粉体进行表征,结果表明:复合粉体存在金属铁相和T-ZnOw相,T-ZnOw四针保持完整,表面包覆完整,铁颗粒为球形,颗粒细小均匀,并T-ZnOw表层外有部分散落铁颗粒,颗粒粒径约为3 μm.用VSM分析测定粉体的磁饱和强度和矫顽力,分别为32.10 emu/g和140.5 Oe.
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