V_2O_5添加对NiCuZn铁氧体材料磁性能的影响  

Effect of V_2O_5 Addtive on the Magnetic Properties of NiCuZn Ferrites Materials

作　　者：孔占兴[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《磁性材料及器件》2010年第6期70-73,共4页Journal of Magnetic Materials and Devices

摘　　要：在前期实验的基础上并根据实际需要,选用Ni0.25Cu0.4Co0.15Zn0.2Fe2O4为主配方,采用普通氧化物陶瓷工艺制备NiCuZn铁氧体材料,通过添加V2O5助熔剂来改善材料的显微结构。主要研究了助剂含量对材料致密化程度、起始磁导率、截止频率、比损耗、温度稳定性等的影响。最终制备出可以用于射频领域的宽频带铁氧体材料,性能为:起始磁导率为7.4,截止频率700MHz左右,在-60～120℃磁导率的比温度系数小于4.5×10-4/℃,比损耗系数在100MHz以下小于1×10-2。Based on previous research,Ni0.25Cu0.4Co0.15Zn0.2Fe2O4 ferrite material was prepared by ordinary oxide ceramic process.The V2O5 additive was used to improve the microstructure and resultantly the properties of the materials.The effect of V2O5 additive content was discussed on the densification,initial permeability,cut-off frequency,power loss,and temperature stability of magetic properties of the material.In final,the RF broadband NiCuZn ferrite was prepared with initial permeability of 7.4,cut-off frequency of 700MHz,temperature coefficient of permeability of less than 4.5×10-4/℃ at-60℃ to 120℃,and specific loss coefficient of less than 1×10-2 below 100 MHz.

关 键 词：NICUZN铁氧体 V2O5添加 显微结构 磁性能 

分 类 号：TM277[一般工业技术—材料科学与工程]