| Zn含量高的Nb2O5-ZnO-Bi2O3系高频介质陶瓷 |
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| 引用本文： | 姚尧,赵梅瑜,王依琳,吴文骏,金行运.Zn含量高的Nb2O5-ZnO-Bi2O3系高频介质陶瓷[J].硅酸盐学报,1999,27(2):208-213. |
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| 作者姓名： | 姚尧 赵梅瑜 王依琳 吴文骏 金行运 |
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| 作者单位： | 中国科学院上海硅酸盐研究所 |
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| 基金项目： | MOTOROLA CTRL资助项目 |
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| 摘 要： | 研究Ｚｎ含量高的Ｎｂ２Ｏ５－ＺｎＯ－Ｂｉ２Ｏ３系高频介质陶瓷，实验结果表明，组成的特征为混合多相结构，除了主晶相为立方焦绿石相之外，随组成变化，尚能生成ＺｎＯ，ＺｎＮｂ２Ｏ６，Ｚｎ３Ｎｂ２Ｏ８，ＢｉＮｂＯ４等相，立方焦绿石相具有高的εＺｒＯ相约出现降低ε及增大ｔａｎδ而ＺｎＮｂ２６，ＢｉＮｂＯ４等相的出现使ε，ｔａｎδ同时降低，并改善电容温度系数。
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| 关 键 词： | 高频介质陶瓷 立方焦绿石相 混合多相 |
HIGH-FREQUENCY DIELECTRIC CERAMICS OF Nb2O5-ZnO-Bi2O3 SYSTEM WITH HIGH ZnO CONTENT |
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| Yao Yao,Zhao Meiyu,Wang Yilin,Wu Wenjun,Jin Xingyun.HIGH-FREQUENCY DIELECTRIC CERAMICS OF Nb2O5-ZnO-Bi2O3 SYSTEM WITH HIGH ZnO CONTENT[J].Journal of The Chinese Ceramic Society,1999,27(2):208-213. |
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| Authors: | Yao Yao Zhao Meiyu Wang Yilin Wu Wenjun Jin Xingyun |
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| Abstract: | Dielectric ceramics of Nb2O5-ZnO-Bi2O3 system with high ZnO content is studied in this paper. The XRD patterns indicate that the materials studied are composed of cubic pyrochlore phase (the major crystalline phase), ZnO, ZnNb2O6,Zn3Nb2O8,BiNbO4 etc. Dielectric constant r for the cubic pyrochlore phase is high, the presence of ZnO will decrease r and increase tan, ZnNb2O6 and BiNbO4 will decrease r and tan, but improve the temperature coefficient of capacitance at the same time. |
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| Keywords: | high frequency dielectric ceramics cubic pyrochlore mixed multi_phase |
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