Microstructure and microwave dielectric properties of ZnO-B2O3 added (Ca0.254Li0.19Sm0.14)TiO3 ceramics

稀有金属（英文版）, 2010, 29(3): 243-247. doi: 10.1007/s12598-010-0042-2

^1, , ^2, , ^3, , ^4,

1.Department of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473009, China

2.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China;School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

3.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China

4.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

基金项目: the National Natural Science Foundation of China(50572008)

Microstructure and microwave dielectric properties of ZnO-B2O3 added (Ca0.254Li0.19Sm0.14)TiO3 ceramics

LU Yin ^1, , LI Haitao ^2, , LI Qian ^3, , ZHANG Boping ^4,

1.Department of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473009, China

3.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China

4.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Keywords： microwave dielectric properties

The effects of ZnO-B2O3 (ZB2) on the sintering behavior and microwave dielectric properties of (Ca0.254Li0.19Sm0.14)TiO3 ceramics were investigated.The densities of the specimens reached the maximum value by adding 3 wt.% ZB2 and then decreased. The sintering temperature of the specimens was lowered from 1300 to 1100 ℃ without degradation of the microwave dielectric properties. The (Ca0.254Li0.19Sm0.14)-TiO3 + 3 wt.% ZB2 sintered at 1100 ℃ for 3 h showed good microwave dielectric properties, ε r = 108.2, Qf = 6545 GHz, and τ f = 6.5 ppm/℃,respectively, indicating that ZB2 was an effective sintering aid to improve the densification and microwave dielectric properties of (Ca0.254Li0.19Sm0.14)TiO3 ceramics.

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Microstructure and microwave dielectric properties of ZnO-B2O3 added (Ca0.254Li0.19Sm0.14)TiO3 ceramics

参考文献