| Li_2ZnTi_3O_8微波介质陶瓷烧结工艺的研究 |
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| 引用本文： | 周斌,郑勇,吕学鹏,周伟,赵毅杰.Li_2ZnTi_3O_8微波介质陶瓷烧结工艺的研究[J].电子元件与材料,2012(12):9-13,17. |
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| 作者姓名： | 周斌 郑勇 吕学鹏 周伟 赵毅杰 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院 |
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| 基金项目： | 国家自然科学基金资助项目(No.51174118) |
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| 摘 要： | 采用传统固相反应法制得Li2ZnTi3O8微波介质陶瓷,研究了主要烧结工艺参数对所制陶瓷的物相组成、显微组织及微波介电性能的影响。结果表明:经900℃预烧并在1 075℃保温4 h所得陶瓷试样只含有单一的Li2ZnTi3O8相;另外,其显微组织均匀,气孔等缺陷较少,相对密度达到98.5%,且具有良好的介电性能:εr=26.6,Q·f=75 563 GHz,τf=–12.4×10–6/℃。
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| 关 键 词： | Li2ZnTi3O8 微波介质陶瓷 烧结工艺 介电性能 |
Study on the sintering process of Li2ZnTi3O8 microwave dielectric ceramics |
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| ZHOU Bin,ZHENG Yong,Lü Xuepeng,ZHOU Wei,ZHAO Yijie.Study on the sintering process of Li2ZnTi3O8 microwave dielectric ceramics[J].Electronic Components & Materials,2012(12):9-13,17. |
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| Authors: | ZHOU Bin ZHENG Yong Lü Xuepeng ZHOU Wei ZHAO Yijie |
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| Affiliation: | (College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Li2ZnTi3O8 microwave dielectric ceramics were synthesized by the traditional solid-state reaction method.The effects of main sintering parameters on the phase composition,microstructure and microwave dielectric properties of the prepared ceramics were investigated.The results show that the ceramic prepared by pre-sintering at 900 ℃ and subsequent sintering at 1075 ℃ for 4 h contains only the Li2ZnTi3O8 phase and shows a uniform microstructure,few defects and a relative density of 98.5%.Moreover,the ceramic shows superior dielectric properties,with a εr value of 26.6,a Q·f value of 75 563 GHz and a τf value of –12.4×10–6/℃. |
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| Keywords: | Li2ZnTi3O8 microwave dielectric ceramics sintering process dielectric properties |
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