Zn含量对NiZn铁氧体材料微观结构及磁性能影响  

Influence of Zn content on the microstructure and magnetic property of NiZn ferrites

作　　者：张凯 闫妍 傅膑 孙科 余忠 兰中文 ZHANG Kai;YAN Yan;FU Bin;SUN Ke;YU Zhong;LAN Zhong-wen(Ruyuan Dongyangguang Magnetic Materials Co,Ltd,Shaoguan 512721,China;School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]乳源东阳光磁性材料有限公司,广东韶关512721 [2]电子科技大学材料与能源学院,四川成都610054

出　　处：《磁性材料及器件》2021年第4期33-36,共4页Journal of Magnetic Materials and Devices

摘　　要：采用固相反应法制备NiZn铁氧体材料,研究了配方中ZnO含量对材料微观结构及磁性能的影响。结果表明,ZnO在固相反应法制备NiZn铁氧体材料过程中有助熔作用,增大Zn含量,材料的晶粒尺寸增大,但均匀性变差;同时,非磁性Zn^(2+)增多,材料的起始磁导率显著增大,但因居里温度过低,饱和磁感应强度和矫顽力均显著降低。NiZn ferrites were prepared by solid-state reaction method.The influence of Zn content on the microstructure and magnetic property of NiZn ferrites were investigated.The results indicated that ZnO could act as a fluxing agent and promote the sintering and mass-transfer.With the increase of Zn content,the grain size increases,but the uniformity got deteriorated.The initial permeability of NiZn ferrites would obviously go up due to the increasing amount of non-magnetic Zn^(2+) ionic.However,because the Curie temperature is too low,the magnetic induction and cocervity of NiZn ferrites decrease.

关 键 词：NIZN铁氧体 Zn含量 微观结构 磁性能 

分 类 号：TM271.2[一般工业技术—材料科学与工程]