| 热处理对3D-C/PyC/SiC力学性能的影响 |
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| 引用本文： | 董宁,张立同,徐永东,成来飞,范尚武.热处理对3D-C/PyC/SiC力学性能的影响[J].固体火箭技术,2008,31(2):188-193. |
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| 作者姓名： | 董宁 张立同 徐永东 成来飞 范尚武 |
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| 作者单位： | 西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072 |
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| 基金项目： | 国家自然科学基金
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国家自然科学基金
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超高温复合材料创新团队项目 |
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| 摘 要： | 研究了2种热处理工艺对3D-C/PyC/SiC力学性能的影响规律和机制。沉积SiC基体前对有PyC界面相的炭纤维编织体进行热处理,使3D-C/PyC/SiC的室温弯曲强度和KIC显著提高,最大提高幅度分别可达38.6%和80.5%。沉积SiC基体后对C/PyC/SiC进行热处理,使3D-C/PyC/SiC的室温弯曲强度和KIC显著降低,最大降低幅度均可达60%以上。
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| 关 键 词： | C/PyC/SiC 热处理 热解炭 炭纤维 |
| 文章编号： | 1006-2793(2008)02-0188-05 |
| 修稿时间： | 2007年12月14 |
Effect of heat-treatment on mechanical properties of 3D-C/PyC/SiC |
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| DONG Ning,ZHANG Li-tong,XU Yong-dong,CHENG Lai-fei,FAN Shang-wu.Effect of heat-treatment on mechanical properties of 3D-C/PyC/SiC[J].Journal of Solid Rocket Technology,2008,31(2):188-193. |
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| Authors: | DONG Ning ZHANG Li-tong XU Yong-dong CHENG Lai-fei FAN Shang-wu |
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| Abstract: | The effects of two kinds of heat treatment processes on the mechanical properties of 3D-C/PyC/SiC were investigated.Heat treatment for carbon fiber woven preform with PyC interphase before deposition of SiC matrix can make the flexural strength and KIC of 3D-C/PyC/SiC at room temperature increase obviously,and the maximum amplitude is 38.6% and 80.5% respectively.Heat treatment for C/PyC/SiC after deposition of SiC matrix can make the flexural strength and KIC of 3D-C/PyC/SiC at room temperature decrease obviously,and the maximum amplitude is 60%. |
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| Keywords: | C/PyC/SiC heat-treatment pyrolytic carbon carbon fiber |
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