高性能C/SiC复合材料的快速制备

新型炭材料, 2001, 16(2): 57-60. doi: 10.3969/j.issn.1007-8827.2001.02.013

高性能C/SiC复合材料的快速制备

宋麦丽 ^1, , 王涛 ^2, , 闫联生 ^3, , 邹武 ^4, , 余惠琴 ^5, , 刘毅佳 ^6,

1.中国航天科技集团四院四十三所,

2.中国航天科技集团四院四十三所,

3.中国航天科技集团四院四十三所,

4.中国航天科技集团四院四十三所,

5.中国航天科技集团四院四十三所,

6.中国航天科技集团四院四十三所,

基金项目: 国防科工委跨行业基金

关键词： C/SiC复合材料 , CVI工艺 , 浸渍裂解工艺 , 联合工艺

RAPID FABRICATION OF C/SiC COMPOSITES WITH HIGH PERFORMANCE

研究开发了“CVI+PIP”组合工艺，本着“低成本、短研制周期，适合批量化生产”的目的，研制的C/SiC复合材料弯曲强度高达561MPa，断裂韧性高达17MPa*m1/2，制成的C/SiC复合材料推力室开孔率小于2%，在0.6MPa气压下不漏气。

A novel process named “CVI+PIP” was developed in the present aiming at the goals of lowing the preparating cost, shortening fabrication cycles and being suitable for batch production. The flexural strength and the fracture toughness of C/SiC composites as received amounted to 561?MPa and 17?MPa*m1/2. Open porosity of such kinds of C/SiC composites is smaller than 2?%, and they do not show leakage when used for propulsion at air pressure of 0.6?MPa.

参考文献

[1]	Prewo K M .Fiber Renforced Ceramics: new opportunites for composite materals[J].American Ceramic Society Bulletin,1989,68(02):395-400.
[2]	Granam Warwick.New materials for hotol[J].Flight International,1998(03):5-11.
[3]	宋麦丽,闫闻生,邹武,王涛.界面层厚度对C/SiC材料强度的影响[C].世纪之交复合材料的现状与发展（第十届全国复合材料学术会议：论文专辑）,1998:385～389.

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