Microstructural interpretation of the effect of various matrices on the ablation properties of carbon-fiber-reinforced composites
Microstructural interpretation of the effect of various matrices on the ablation properties of carbon-fiber-reinforced composites
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DOI：
10.1016/s0266-3538(00)00212-8
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发表时间：
2001-01-01
影响因子：
9.1
通讯作者：
Yoon, BI
中科院分区：
文献类型：
--
作者：
Cho, D;Yoon, BI
本文介绍了一个广泛的研究烧蚀性能，烧蚀的微观结构行为和热稳定性的各种碳纤维增强复合材料组成的四个不同的基体，酚醛基体，碳质基体，含浸渍树脂的碳质基体和含热解碳的碳质基体。采用等离子体炬进行烧蚀试验，对所用复合材料的烧蚀性能进行了定量评价。碳纤维和复合材料基体的烧蚀行为已定性解释通过扫描电子显微镜的方法。用热重分析仪研究了复合材料在空气和氮气中的热稳定性。烧蚀试验结果表明，与一个单一的基体（1C/C）和这些与碳质基体（1C/C + CVI）含有热解碳渗透的CVI工艺具有最高的耐烧蚀性。尤其是。1C/C和1C/C + CVI复合材料的抗烧蚀性能分别提高了61%和67%。与碳/酚醛绿色复合材料相比，(C)2001爱思唯尔科技有限公司版权所有。
This paper presents an extensive study of the ablation properties, microstructural behavior of ablation and thermal stability of various carbon-fiber-reinforced composites composed of four different matrices, a phenolic matrix, a carbonaceous matrix, a carbonaceous matrix containing impregnated resin and a carbonaceous matrix containing pyrocarbon. The ablation properties of the composites used were quantitatively evaluated by performing ablation tests with a plasma torch. The ablation behavior of both the carbon fibers and the composite matrix has been qualitatively interpreted through a scanning-electron-microscopy approach. The thermal stability of the composites was also examined by using a thermogravimetric analyzer both in air and nitrogen gas. The ablation test results reveal that composites with a carbonized matrix only (1C/C) and these with a carbonaceous matrix (1C/C + CVI) containing pyrocarbon infiltrated by a CVI process have the highest ablation resistance. In particular. the ablation resistances of 1C/C and 1C/C + CVI composites are improved by about 61 and 67% on the basis of weight change. respectively, in comparison with carbon/phenolic green composite. (C) 2001 Elsevier Science Ltd. All rights reserved.