| Effects of BaCu（B2Os） addition on sintering temperature and microwave dielectric properties of BasNb4O15-BaWO4 ceramics |
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| 作者姓名： | 贾瑞龙 苏桦 唐晓莉 荆玉兰 |
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| 作者单位： | State Key Laboratory orElectronic Thin Fillms and Integrated Devices,University of Electronic Science and Technology of China, Chengdu 610054, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant Nos. 51372031, 61171047, 51132003, and 61271038）, the Program for New Century Excellent Talents in University, China （Grant No. NCET-12-0090）, and Science Fund from the Science and Technology Department of Sichuan Province, China （Grant No. 2013GZX0144）. |
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| 摘 要： | The effects of BaCu（B2Os） （BCB） addition on the microstructure, phase formation, and microwave dielectric proper- ties of BasNb4015-BaWO4 ceramic are investigated. As a sintering aid, BaCu（B2Os） ceramic could effectively lower the sintering temperature of BasNb4015-BaWO4 ceramic from 1100 ℃ to 950 ℃ due to the liquid-phase effect. Meanwhile, BaCu（B2Os） addition effectively improves the densification of BasNb4015-BaWO4 ceramic and significantly influences the microwave dielectric properties. X-ray diffraction analysis reveals that BasNb4015 and BaWO4 coexist with no crystal phase of BaCu（B2Os） in the sintered ceramics. The BasNb4015-BaWO4 ceramics with 1.0 wt% BaCu（B2Os） sintered at 950 ℃ for 2 h presents good microwave dielectric properties of er = 19.0, high Q× f of 33802 GHz and low vf of 2.5 ppm/℃.
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| 关 键 词： | 微波介电性能 烧结陶瓷 烧结助剂 烧结温度 X-射线衍射分析 微波介电特性 微观结构 BCB |
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