Effect of Sb5+ substitution on the dielectric properties of Ag(Nb0.8Ta0.2)O3 ceramics |
| |
| Affiliation: | 1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China;4. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;5. School of Physical Science and technology, ShanghaiTech University, Shanghai 201210, China |
| |
| Abstract: | Sb2O5 were selected to substitute (Nb0.8Ta0.2)2O5 and the effects of substitution on the dielectric properties of Ag(Nb0.8Ta0.2)O3 ceramics were studied. The dielectric properties of Ag(Nb0.8Ta0.2)1?xSbxO3 ceramics were found to be improved by the substitution of Sb for Nb/Ta. The ε value of Ag(Nb0.8Ta0.2)1?xSbxO3 ceramics sintered at 1060 °C increased from 430 to 825 with x increasing from 0 to 0.08, the tanδ value decreased sharply from 0.0085 to 0.0023 (at 1 MHz) with x increasing from 0 to 0.04, and then kept to a lower tanδ value ～ 0.0024 with x to 0.08. The TCC values decreased from + 1450 ppm/°C for x = 0 to ? 38.5 ppm/°C for x = 0.08. The Ag(Nb0.8Ta0.2)1?xSbxO3 ceramics with x = 0.08 sintered at 1050 °C exhibited the optimum dielectric properties of ε ～ 854, tanδ ～ 0.0024 (1 MHz), and TCC ～ 36.86 ppm/°C. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
