烧结温度对W型铁氧体吸收剂微观结构及电磁性能的影响  

Effect of sintering temperature on W-type ferrite absorber

作　　者：刘冬 张鹏杰[1,2,3] 孙威 胡国辉 王倩 李青华 刘颖力[4] 鲜聪 马嵩[6] LIU Dong;ZHANG Pengjie;SUN Wei;HU Guohui;WANG Qian;LI Qinghua;LIU Yingli;XIAN Cong;MA Song(BGRIMM Magnetic Materials&Technology Co.Ltd.,Beijing 102600,China;BGRIMM Magnetic Materials&Technology(Fuyang)Co.Ltd.,Fuyang 236000,Anhui,China;National Engineering Research Center for Magnetic Materials,Beijing 102600,China;School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;The 9th Research Institute of China Electronics Technology Group Corporation,Mianyang 621000,Sichuan,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]北矿磁材科技有限公司,北京102600 [2]北矿磁材(阜阳)有限公司,安徽阜阳236000 [3]国家磁性材料工程技术研究中心,北京102600 [4]电子科技大学电子科学与工程学院,成都611731 [5]中国电子科技集团公司第九研究所,四川绵阳621000 [6]中国科学院金属研究所,沈阳110016

出　　处：《矿冶》2024年第4期594-599,共6页Mining And Metallurgy

基　　金：国家重点研发计划项目(2022YFB3504800)。

摘　　要：以碳酸锶(SrCO_(3))、氧化锌(ZnO)、四氧化三钴(Co_(3)O_(4))和三氧化二铁(Fe_(2)O_(3))为原料,采用氧化物法制备铁氧体,研究了烧结温度对W型铁氧体吸收剂的物相组成、微观结构、粒径与孔隙度、内禀矫顽力H_(cj)和饱和磁化强度M_(s)、电磁参数等的影响规律。结果表明:烧结温度为1125℃时,尚未生成W型铁氧体;烧结温度为1175℃时,生成层片状的W型铁氧体;烧结温度为1225℃和1275℃时,所制备的W型铁氧体吸收剂展现出较佳的吸波性能。Ferrites were prepared using the oxide method with strontium carbonate(SrCO_(3)),zinc oxide(ZnO),cobalt trioxide(Co_(3)O_(4)),and iron oxide(Fe_(2)O_(3))as raw materials.The effects of sintering temperature on the phase composition,microstructure,particle size and porosity,intrinsic coercivity H_(cj),saturation magnetization M_(s) and electromagnetic parameters of W-type ferrite absorbent were studied.The results show that W-type ferrite is not formed when the sintering temperature is 1125℃.When the sintering temperature is 1175℃,lamellar W-type ferrite is formed.At 1225℃and 1275℃,the prepared W-type ferrite absorbent shows better absorbing properties.

关 键 词：烧结温度 W型铁氧体 吸收剂 电磁参数 吸波性能 

分 类 号：TB34[一般工业技术—材料科学与工程]