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Effect of Zno-B2o3-Na2o Glass on Microwave Dielectric Properties of Ca[(Li1/3nb2/3)0.8sn0.2]O3-δCeramics

XIONG Gang 1,2 ,ZHOU Dongxiang 2 ,LI Zhongming 1 ,WU Siqing1 ,LIU Jianghua 1

(1. Department of Electronic and Information Engineering, Xianning College, Xianning 437100; 2. Electronic Department of Huazhong University of Science and Technology, Wuhan 430074)

Abstract: The effects of ZnO-B2O3-Na2O glass on the sinterability and microwave dielectric properties of Ca [(Li1/3Nb2/3)0.8Sn0.2]O3-δ（CLNS） ceramics were investigated. ZBN glass doping can effectively reduce sintering temperature by 100 ~150℃. The temperature coefficient of resonator frequency τf increased with the increase of ZBN glass content and sintering temperature.When ZBN glass of 3wt% were added, the optimum microwave dielectric properties: εr =25.8, Qf =11330GHz and τf =-12.5ppm/℃ were obtained at the sintering temperature of 1050℃.

Keywords: CLNS ceramics, low-temperature sintering, ZBN glass, microwave dielectric properties


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