| Microstructural study of the ablation behaviors of 3D fine weave pierced Carbon/Carbon composites using plasma torch at ultra-high temperature |
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| 作者姓名： | 张巍 韩杰才 张博明 孟松鹤 |
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| 作者单位： | Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China |
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| 摘 要： | Carbon/carboncompositesareafamilyofad vancedcompositematerials.Theyarethemostad vancedformofcarbonandconsistofafiberbasedon carbonprecursorsembeddedinacarbonmatrix.Thisuniquecompositiongivesthemsuchpropertiesaslowdensity,highthermalconductivity,goodtherma…
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| 关 键 词： | 碳复合材料 微观结构 超高温等离子弧焊 三维精密焊炬 |
| 文章编号： | 1005-9113（2006）01-0027-05 |
| 收稿时间： | 2003-08-19 |
Microstructural study of the ablation behaviors of 3D fine weave pierced Carbon/Carbon composites using plasma torch at ultra-high temperature |
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| ZHANG Wei,HAN Jie-cai,ZHANG Bo-ming,MENG Song-he.Microstructural study of the ablation behaviors of 3D fine weave pierced Carbon/Carbon composites using plasma torch at ultra-high temperature[J].Journal of Harbin Institute of Technology,2006,13(1):27-31. |
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| Authors: | ZHANG Wei HAN Jie-cai ZHANG Bo-ming MENG Song-he |
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| Abstract: | A simple and effective method of testing ablation behaviors of carbon/carbon composites at high temperature was provided, which used plasma torch as the heater. The ablation resistance of 3D fine weave pierced carbon/carbon composites at high temperature was also studied. The results show that temperature of the plasma flame is very high which is much closer to the real work environment of carbon/carbon composites. The factors that affect the ablation characters of carbon/carbon composites depend on both the properties of their components and the environmental conditions in which the material is placed. The ablation behaviors of C/C composites change from the center flame region predominantly influenced by sublimation of graphite to the region close to the outer flame influenced mainly by oxidization of graphite. The sublimation ability of carbon matrix is equal to that of carbon fibers but the oxidization ability of carbon fibers is significantly enhanced compared to that of carbon matrix. |
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| Keywords: | carbon/carbon composites ablation plasma |
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