锰锌铁氧体流变相法制备及其吸波性能研究  

Preparation and Microwave Absorbing Performance of MnZn Ferrite Powder by Rheologic Phase Method

作　　者：王建成 潘宣彤 韦晶晶 霍炳赫 黄晓东 WANG Jiancheng;PAN Xuantong;WEI Jingjing;HUO Binghe;HUANG Xianodong(Guangxi Electrical Polytechnic Institute,Guangxi Nanning 530006 China)

机构地区：[1]广西电力职业技术学院,广西南宁530006

出　　处：《广州化工》2025年第6期67-69,共3页GuangZhou Chemical Industry

摘　　要：为改进锰锌铁氧体的制备工艺并提升其吸波性能,通过流变相法制备锰锌铁氧体前驱体,然后经高温煅烧得到铁氧体粉体。利用X射线衍射仪、激光粒度分析仪、扫描电子显微镜对锰锌铁氧体进行表征,并进行吸波性能测试。结果表明,流变相法制备的前驱体经400℃煅烧即可制得晶型完整、晶粒细小、分布均匀的粉体,吸波性能较好;而经850℃高温煅烧后,虽然粉体晶型更完善,但存在含铁杂质相,且由于晶粒更加粗大、团聚更严重,吸波性能变差。In order to improve the preparation process of MnZn ferrite and enhance its microwave absorbing performance,MnZn Ferrite precursors were prepared by the rheological phase method and then sintered at different temperatures to obtain ferrite powder.MnZn ferrite was characterized using an X-ray diffractometer,a laser particle size analyzer,and a scanning electron microscope,and its absorption performance was tested with tabletting sample.The results showed that the precursor prepared by rheological phase method can produce a material with a complete crystalline form,fine and evenly distributed grains,and good absorbing performance after sintering at 400℃.However,the ferrite powder improved crystalline after sintering at a higher temperature,such as 850℃,but had iron impurity phase,and due to larger grain size and more serious agglomeration,the material had a poorer absorption performance.

关 键 词：锰锌铁氧体 流变相法 高温烧结 吸波性能 

分 类 号：TM272[一般工业技术—材料科学与工程]