Ultra‐Low Fire Glass‐Free Li3FeMo3O12 Microwave Dielectric Ceramics |
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| Authors: | Qingwei Liao Yunli Wang Feng Jiang Dong Guo |
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| Affiliation: | Institute of Acoustics, Chinese Academy of Sciences, , Beijing, 100190 China |
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| Abstract: | A new ultra‐low fire glass‐free microwave dielectric material Li3FeMo3O12 was investigated for the first time. Single phase ceramics were obtained by the conventional solid‐state route after sintering at 540°C–600°C. The atomic packing fraction, FWHM of the Ag oxygen‐octahedron stretching Raman mode and Qf values of samples sintered at different temperatures correlated well with each other. The sample with a Lower Raman shift showed a higher dielectric constant. Interestingly, the system also showed a distinct adjustable temperature coefficient of resonant frequency (from ?84× 10?6/°C to 25 × 10?6/°C). |
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