A novel ultra-low temperature cofired Na₂BiZn₂V₃O₁₂ ceramic and its chemical compatibility with metal electrodes

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• 作者：Huaicheng Xiang ; Ying Tang ; Liang Fang…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：28
• 期：2
• 页码：1508-1513
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

Na₂BiZn₂V₃O₁₂ ceramic was investigated as a promising microwave dielectric material for the ultra-low-temperature co-fired ceramic (ULTCC) technology. Dense Na₂BiZn₂V₃O₁₂ ceramic was prepared using the conventional solid-state method from 560 to 640 °C. X-ray diffraction data show that Na₂BiZn₂V₃O₁₂ ceramic crystallized into a cubic garnet structure with a space group Ia-3d. The sample sintered at 600 °C for 4 h has the highest relative density of 96.3 % and exhibits the optimum microwave properties with a relative permittivity of 22.3, a quality factor of 19,960 GHz (at 8.7 GHz), and a temperature coefficient of resonance frequency of +15.5 ppm/°C. The Na₂BiZn₂V₃O₁₂ ceramic was found to be chemically compatible with highly conductive aluminum and sliver electrode. These results confirm that Na₂BiZn₂V₃O₁₂ ceramic can be a promising candidate for the ULTCC technology.