Microstructure and microwave magnetic properties of Low-Firing Li0.42Zn0.27Ti0.11Mn0.1Fe2.1O4 ferrite

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Xie, Fei^1 ; Jia, Lijun^1 ; Shen, Qihang^1 ; Qiu, Hua^1 ; Zhang, Huaiwu^1

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu

610054, China^1

关键词: Composite microstructures;    Ferromagnetic resonance lines;    Integration application;    Low firing temperature;    Low-temperature co-fired ceramics;    Microwave magnetic properties;    Saturation flux density;    Sintering temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/2/022053/pdf
DOI  :  10.1088/1757-899X/322/2/022053

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Low firing temperature and excellent gyromagnetic properties such as high remanence square ratio and narrow ferromagnetic resonance line width are required for the application in nonreciprocal microwave ferrite devices based on low temperature cofired ceramics (LTCC) technology. In this research, Bi2O3-Li2CO3mixture was introduced as the sintering agent to lower the sintering temperature of Li0.42Zn0.27Ti0.11Mn0.1Fe2.1O4ferrite. The influence of Bi2O3-Li2CO3mixture upon the phase composition, composite microstructures and gyromagnetic properties of LiZnTiMn ferrite sintered at low temperature has been investigated for LTCC integration applications. With a proper amount of Bi2O3-Li2CO3mixture, the sintering temperature of LiZnTiMn ferrite successfully reduced to below 900°C from 1100°C without degradation of magnetic properties, meanwhile, both of saturation flux density and remanence square ratio were increased.