Sintering Behavior and Dielectric Properties of Ultra‐Low Temperature Fired Silver Molybdate Ceramics |
| |
| Authors: | Di Zhou Wen‐Bo Li Li‐Xia Pang Jing Guo Ze‐Ming Qi Tao Shao Zhen‐Xing Yue Xi Yao |
| |
| Affiliation: | 1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'an Jiaotong University, , Xi'an, 710049 China;2. Micro‐Optoelectronic Systems Laboratories, Xi'an Technological University, , Xi'an, 710032 China;3. National Synchrotron Radiation Laboratory, University of Science and Technology of China, , Hefei, 230029 China;4. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, , Beijing, 100084 China |
| |
| Abstract: | Ag2MoO4 ceramic was prepared by using the solid‐state reaction method, which could be sintered at 450°C for 2 h, having a relative permittivity of 8.08, a Qf value of 17 000 GHz, and a temperature coefficient of resonance frequency about ?133 ppm/°C. Ag2MoO4 ceramic was chemically compatible with silver but reacted seriously with aluminum to form (Ag0.5Al0.5)MoO4 during the sintering. The fitting of infrared spectra and the Shannon's additive rule were employed to study intrinsic dielectric behaviors of the ceramics at microwave region. Ionic displacive polarization and the electronic polarization contributed almost equally to the dielectric permittivity of the ceramic at microwave region. The Ag2MoO4 ceramics could be a good candidate for ultra‐low temperature co‐fired microwave devices. |
| |
| Keywords: | |
|
|
