| 低成本聚硅氧烷制备SiC_f／Si-O-C材料性能研究 |
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| 引用本文： | 范真祥,程海峰,张长瑞,唐耿平,楚增勇,王军.低成本聚硅氧烷制备SiC_f／Si-O-C材料性能研究[J].航空材料学报,2006,26(2):52-56. |
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| 作者姓名： | 范真祥 程海峰 张长瑞 唐耿平 楚增勇 王军 |
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| 作者单位： | 国防科学技术大学,航天与材料工程学院,国防科技重点实验室,长沙,410073 |
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| 摘 要： | 以聚硅氧烷为先驱体,采用先驱体转化法制备SiCf/Si-O-C复合材料,同时测试所得复合材料的弯曲强度、韧性、剪切强度、密度、热膨胀系数、导热系数、耐烧蚀性能.结果表明,SiCf/Si-O-C复合材料具有良好的综合性能.对所得材料微观结构进行分析讨论,发现界面结构与致密度是SiCf/Si-O-C复合材料具有高性能的主要原因.
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| 关 键 词： | Si-O-C 聚硅氧烷 先驱体转化 陶瓷基复合材料 烧蚀性能 |
| 文章编号： | 1005-5053(2006)02-0052-05 |
| 修稿时间： | 2005年3月10日 |
Study of Properties of Silicon Carbide Fiber Reinfoced Si-O-C Composites Using Low Cost Polysiloxane |
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| FAN Zhen-xiang,CHENG Hai-feng,ZHANG Chang-rui,TANG Geng-ping,CHU Zeng-yong,WANG Jun.Study of Properties of Silicon Carbide Fiber Reinfoced Si-O-C Composites Using Low Cost Polysiloxane[J].Journal of Aeronautical Materials,2006,26(2):52-56. |
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| Authors: | FAN Zhen-xiang CHENG Hai-feng ZHANG Chang-rui TANG Geng-ping CHU Zeng-yong WANG Jun |
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| Abstract: | Silicon carbide fiber reinforced siliconoxycarbide(Si-O-C) composites were fabricated via precursor infiltration and pyrolysis using polysiloxane. Flexural strength, tensile strengths, shear strength, dentsity, thermal expansion coefficient, thermal conduction coefficient, ablative properties of SiCf/Si-O-C composites were tested . The results indicated that SiCf/Si-O-C composites had fairly excellent properties. Microstructure and properties of SiCf/Si-O-C composites was discussed, the high properties were mainly attributed to ideal interface structure and density. |
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| Keywords: | silicon oxycarbide polysiloxane precursor infiltration and pyrolysis ceramic matrix composite ablative property |
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