Microwave dielectric properties of low-fired Li2ZrO3–ZnO composite ceramics
作者： Jianli Ma , Zhifen Fu , Peng Liu , Xudong Tang
DOI: 10.1007/S10854-015-3744-2
关键词: Sintering 、 Microwave dielectric properties 、 Microstructure 、 Ceramic 、 Doping 、 Dielectric 、 Composite material 、 Composite number 、 Materials science 、 Electrode
摘要: We fabricated the low-fired (1 − x)Li2ZrO3–xZnO (0.1 ≤ x 0.5) composite ceramics doped with 3 wt% LiF by a conventional solid-state route, and investigated systematically their sintering characteristics, microstructures microwave dielectric properties. The results showed that Li2ZrO3 ZnO coexist in sintered ceramics, temperature stability of were improved doping ZnO. Furthermore, addition successfully reduced temperatures Li2ZrO3–ZnO to below 950 °C. A typical sample 0.7Li2ZrO3–0.3ZnO–3 optimum properties (ɛr = 14.8, Q × f 26,800 GHz, τf 1 ppm/°C) achieved at 940 °C for 4 h. Such was compatible Ag electrodes, suitable low-temperature co-fired (LTCC) applications.
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