| 预氧化在SiC基陶瓷材料烧结中的作用 |
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| 引用本文： | 朱玉梅,靳正国. 预氧化在SiC基陶瓷材料烧结中的作用[J]. 天津大学学报(自然科学与工程技术版), 2003, 36(6): 769-772 |
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| 作者姓名： | 朱玉梅 靳正国 |
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| 作者单位： | [1]天津大学电子信息工程学院，天津300072 [2]天津大学材料科学与工程学院，天津300072 |
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| 摘 要： | 对添加Y2O3／Al2O3烧结助剂的SiC材料进行了不同的烧成工艺试验，结果表明，在烧成前先进行预氧化处理的SiC材料，其表面氧化生成的SiO2促进了低温液相的形成，有助于降低该材料的气孔率。同时发现，合适的预氧化温度和保温时间能更有效地降低烧结体气孔率，促进烧结。
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| 关 键 词： | 预氧化 陶瓷材料 烧结 碳化硅 |
| 文章编号： | 0493-2137(2003)06-0769-04 |
| 修稿时间： | 2002-05-22 |
Effect of Pre-oxidation on Sintering of SiC Ceramic Materials |
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| ZHU Yu-mei,JIN Zheng-guo. Effect of Pre-oxidation on Sintering of SiC Ceramic Materials[J]. Journal of Tianjin University(Science and Technology), 2003, 36(6): 769-772 |
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| Authors: | ZHU Yu-mei JIN Zheng-guo |
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| Affiliation: | ZHU Yu-mei~1,JIN Zheng-guo~2 |
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| Abstract: | The different sintering procedures for SiC ceramic materials with Y_2O_3/Al_2O_3 additives were investigated. The experimental results show that the SiO_2 on surface of SiC particles derived from the pre-oxidation treatment of the samples promotes the formation of low temperature glass, which contributes to cut down the porosity of the samples sintered. It also shows that suitable pre-oxidation temperature and holding time can lower the porosity of the samples more significantly, and therefore improve the sintering. |
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| Keywords: | SiC sintering pre-oxidation |
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