| 烧结助剂对氮化硅陶瓷显微结构和性能的影响 |
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| 引用本文： | 师瑞霞,尹衍升,王英姿.烧结助剂对氮化硅陶瓷显微结构和性能的影响[J].现代技术陶瓷,2003,24(3):7-11. |
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| 作者姓名： | 师瑞霞 尹衍升 王英姿 |
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| 作者单位： | 1. 山东大学材料液态结构及其遗传性教育部重点实验室,山东省工程陶瓷重点实验室,济南,250061
2. 济南大学材料学院,济南,250022 |
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| 摘 要： | 氮化硅中氮原子和硅原子的自扩散系数很低，致密化所必需的扩散速度和烧结驱动力都很小，在烧结过程中需采用烧结助剂。烧结助剂是影响氮化硅陶瓷的显微结构和性能的关键因素之一。有效的烧结助剂不但可以改善氮化硅陶瓷的显微结构，而且可以提高氮化硅陶瓷的高温性能和抗氧化性能。
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| 关 键 词： | 烧结助剂 氮化硅陶瓷 显微结构 性能 |
Effects of Sintering Aids on Microstructure and Properties of Silicon Nitride Ceramics |
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| Shi Ruixia Yin Yansheng.Effects of Sintering Aids on Microstructure and Properties of Silicon Nitride Ceramics[J].Advanced Ceramics,2003,24(3):7-11. |
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| Authors: | Shi Ruixia Yin Yansheng |
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| Abstract: | During sintering process of silicon nitride ceramics,the sintering aids were used because self-diffusion coefficients of nitrogen and silicon were very low and diffusion velocity and sintering driving force required by densifying were small.Sintering aids were one of key factors affecting microstructure and properties of silicon nitride ceramics.Effective sintering aids not only can improve microstructure but also can enhance performances of elevated temperature and oxidation resistance. |
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| Keywords: | sintering aids silicon nitride microstructure property |
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