| 二氧化硅掺杂对黑色氧化铝陶瓷的改性 |
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| 引用本文： | 周东祥,梁军,龚树萍,郑志平.二氧化硅掺杂对黑色氧化铝陶瓷的改性[J].硅酸盐学报,2007,35(9):1178-1180. |
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| 作者姓名： | 周东祥 梁军 龚树萍 郑志平 |
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| 作者单位： | 华中科技大学电子科学与技术系,武汉,430074 |
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| 摘 要： | 用超微细氧化铝(Al2O3),二氧化硅(SiO2)粉体及适量的过渡金属氧化物,用固相反应法在1 350 ℃空气中烧结得到了致密的黑色Al2O3陶瓷.研究了SiO2掺杂对陶瓷显微结构和电性能的影响.实验表明:在黑色Al2O3陶瓷中,SiO2是一种较好的掺杂剂,它不仅可以降低烧结温度,使陶瓷晶粒细小均匀,同时还可以改善材料的电气性能,使之满足用作晶体振荡器件、光电器件及集成电路器件等的基板及避光封装外壳的要求.
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| 关 键 词： | 封装材料 氧化铝陶瓷 氧化硅掺杂 介电性能 packaging materials alumina ceramics silica-doping dielectric properties |
| 文章编号： | 0454-5648（2007）09-1178-03 |
| 修稿时间： | 2006-12-13 |
RESEARCH ON EFFECT OF SILICA ADDITIVE ON PROPERTIES OF BLACK ALUMINA CERAMICS |
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| ZHOU Dongxiang,LIANG Jun,GONG Shuping,ZHENG Zhiping.RESEARCH ON EFFECT OF SILICA ADDITIVE ON PROPERTIES OF BLACK ALUMINA CERAMICS[J].Journal of The Chinese Ceramic Society,2007,35(9):1178-1180. |
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| Authors: | ZHOU Dongxiang LIANG Jun GONG Shuping ZHENG Zhiping |
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| Affiliation: | Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Using ultra-fine alumina (A12O3), silica (SiO2) and appropriate transition elements as starting materials, black Al2O3 ceramics were obtained by conventional solid state reaction method at 1 350 ℃ in ambient air. The effect of SiO2 additive on the microstructure and electrical properties of black Al2O3 ceramics was studied. The results indicated that SiO2 was the right kind of dopant for black Al2O3 ceramics. The SiO2 not only lowered the sintering temperature of black Al2O3 ceramics, led fine grains and uniform microstructure, but also improved electrical properties. The obtained black Al2O3 ceramics was suitable for substrate and packaging materials in crystal oscillator, photoelectric device and integrated circuits. |
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| Keywords: | packaging materials alumina ceramics silica-doping dielectric properties |
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