| 界面改性对混杂基C/SiC复合材料性能的影响 |
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| 引用本文： | 宋麦丽,闫联生,扬星,张强.界面改性对混杂基C/SiC复合材料性能的影响[J].固体火箭技术,2009,32(5). |
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| 作者姓名： | 宋麦丽 闫联生 扬星 张强 |
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| 作者单位： | 西安航天复合材料研究所,西安,710025 |
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| 摘 要： | 通过界面设计与实验研究,对C/SiC材料进行C/SiC/C多层涂层界面处理,实现了保护纤维和提高复合材料韧性及调节机械性能的多重目的.同时还研究了界面涂层前后纤维表面处理对复合材料性能的影响,结果表明,对增强体进行界面涂层处理和"酸处理",适当强化弱界面,起到了提高复合材料高温强度保留率和增韧的目的,酸处理+CVD-C/SiC/C界面涂层的C/SiC 复合材料的高温强度保留率达到90%;进行了C/SiC/C界面涂层的C/SiC 复合材料的断裂韧性高达20.72 MPa·m1/2,较未进行界面涂层的C/SiC 复合材料的断裂韧性提高了31.8%.
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| 关 键 词： | 混杂基C/SiC材料 界面改性 高温强度保留率 韧性 |
Influences of interface modifications on hybrid matrix C/SiC composite properties |
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| SONG Mai-li,YAN Lian-sheng,YANG Xing,ZHANG Qiang.Influences of interface modifications on hybrid matrix C/SiC composite properties[J].Journal of Solid Rocket Technology,2009,32(5). |
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| Authors: | SONG Mai-li YAN Lian-sheng YANG Xing ZHANG Qiang |
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| Institution: | SONG Mai-li,YAN Lian-sheng,YANG Xing,ZHANG Qiang(X'an Aerospace Composites Material Institute,Xi'an 710025,China) |
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| Abstract: | Through interface design and experiment research,C/SiC material was treated by means of C/SiC/C multilayer interface coating to protect fibers,improve composite toughness and adjust mechanical performance.And the influence of the surface treatment of fiber on composite property was studied.The results show that C/SiC/C interface coatings and the acidification treatment of reinforced fiber can intensify the weak interface property,raise high-temperature retention ratio of strength and improve toughness of C/... |
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| Keywords: | hybrid matrix C/SiC composites interface modifications high temperature strength retention ratio toughness |
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