Microwave Dielectric Properties of LiKSm2(MoO4)4 Ceramics with Ultralow Sintering Temperatures |
| |
| Authors: | Xiao‐Liu Zhai Xu Zheng Hai‐Hong Xi Wen‐Bo Li Jun Han Di Zhou |
| |
| Affiliation: | 1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, Shaanxi, China;2. Jiangsu Baoli Asphalt Co., LTD, Wuxi, Jiangsu, China;3. Xi'an Jiaotong University Suzhou Academy, Suzhou, Jiangsu, China |
| |
| Abstract: | In this work, a novel low‐temperature firing microwave dielectric ceramic LiKSm2(MoO4)4 was prepared via solid‐state reaction method. Ceramic samples with relative densities about 94.6% were obtained at sintering temperature 640°C–680°C. The best microwave dielectric properties was obtained in ceramic sample sintered at 620°C with a permittivity about 11.5, a Q × f value about 39 000 GHz and a temperature coefficient of frequency about ?15.9 ppm/°C. According to XRD patterns and backscattered electron micrograph, combined with Energy Dispersive Spectra analysis, of cofired samples with 30 wt% aluminum sintered at 620°C/4 h, the LiKSm2(MoO4)4 ceramic was found to be chemically compatible with Al but react seriously with Ag, forming AgSmMo2O8 phase, at its sintering temperature. |
| |
| Keywords: | |
|
|
