BNT-NiCuZn复合陶瓷磁电性能研究  

Dielectric and magentic properties of BNT-NiCuZn composite ceramics

作　　者：梁海荣[1] 苏丽娜[1] 刘鹏[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2012年第4期30-33,共4页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(20575039)

摘　　要：采用传统电子陶瓷工艺,制备了xBi0.5Na0.5TiO3+(1-x)Ni0.2Cu0.2Zn0.62O(Fe2O3)0.98(BNT-NiCuZn)+3%Bi2O3(0≤x≤60%)复合陶瓷,研究了不同含量BNT对陶瓷微观结构、介电性能和磁性能的影响.X射线衍射结果表明:所有样品只有两相(BNT相和NiCuZn相)未发生明显的化学反应.随BNT含量的增加,介电常数增大,磁导率减小,40%BNT+60%NiCuZn+3%Bi2O3表现出优良的整体性能(εr=86.85,tanδε|1MHz=0.023,μr=33.8,tanδ|1MHz=0.18).预示这一材料可被广泛用于电感、电阻电容.xBi0.5 Na0.5 TiO3 ＋ （1 - x） Ni0.2 Cu0.2 Zn0.62 O （Fe2O3 ） （BNT-NiCuZn）0.98 compound ceramics are perpared by using a traditional ceramic processing with addition of 3 % Bi2 O3. The effects of the concentration of Bi0.5 Na0.5 TiOa （BNT） on the microstructures, dielectric and magentic properties of NiCuZn ceramic are investigated. X-ray diffraction （XRD） results showed that the sintered ceramics are two phase composites consisted of BNT and Nio. 2 Cuo. 2 Zn0.62 O（Fe2 O3）0.98（NiCuZn） phases. No significant chemical reactions occurred between BNT and NiCuZn ceramics during firing. The real permittivity increase and the permeability decreases with the BNT content increase. The 40% BNT ＋ 60% NiCuZn composite exhibits excellent integrated properties （εr=86.85,tanδε｜1MHz=0.023,μr=33.8,tanδ｜1MHz=0.18）. which can be used not only as the inductors and resistors but as the capacitors.

关 键 词：复合陶瓷 钛酸铋钠 镍铜锌铁氧体 介电性能 磁性能 

分 类 号：O487[理学—固体物理]