| 碳/碳复合材料SiC-HfSi_2抗烧蚀复合涂层(英文) |
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| 引用本文： | 李淑萍,李克智,袁秦鲁.碳/碳复合材料SiC-HfSi_2抗烧蚀复合涂层(英文)[J].硅酸盐学报,2010,38(2). |
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| 作者姓名： | 李淑萍 李克智 袁秦鲁 |
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| 作者单位： | 1. 西北工业大学材料学院,西安,710072
2. 西北工业大学航空学院,西安,710072 |
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| 基金项目： | 国家“973”计划(2006CB600908);;高等学校学科创新引智计划(B08040)资助项目 |
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| 摘 要： | 为改善碳/碳(C/C)复合材料的抗烧蚀性能,采用包埋技术在C/C复合材料表面制备了碳化硅-硅化铪(SiC-HfSi2)抗烧蚀复合涂层。采用氧乙炔火焰烧蚀试验评价了C/C复合材料样品的抗烧蚀性能。通过扫描电镜观察、能谱分析及X射线衍射分析研究了烧蚀前后C/C复合材料抗烧蚀涂层的表面和断面形貌、元素分布和相组成。结果表明:涂层C/C复合材料在烧蚀后其表面出现了丛生的氧化硅纳米线。同时,与未涂层C/C复合材料相比,SiC-HfSi2涂层使C/C复合材料的质量烧蚀率下降了85.6%。
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| 关 键 词： | 碳/碳复合材料 抗烧蚀涂层 碳化硅-硅化铪 氧化硅纳米线 |
A SiC-HfSi_2 ANTI-ABLATION COMPOUND COATING OF CARBON/CARBON COMPOSITE |
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| LI Shuping,LI Kezhi,YUAN Qinlu.A SiC-HfSi_2 ANTI-ABLATION COMPOUND COATING OF CARBON/CARBON COMPOSITE[J].Journal of The Chinese Ceramic Society,2010,38(2). |
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| Authors: | LI Shuping LI Kezhi YUAN Qinlu |
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| Affiliation: | 1.School of Materials Science and Engineering;Northwestern Polytechnical University;Xi'an 710072;2.School of Aeronautics;China |
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| Abstract: | To improve the ablation resistance of carbon/carbon (C/C) composite,a silicon carbide-hafnium silicide (SiC-HfSi2) coating was prepared on the C/C composite surface by a pack cementation technique.The ablation behavior of the coated C/C composite was evaluated by the oxyacetylene flame.Scanning electron microscopy,energy dispersive spectroscopy and X-ray diffraction were also applied to analyze the surface and cross-section morphologies,element distribution as well as the phase composition of coatings befor... |
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| Keywords: | carbon/carbon composites anti-ablation coatings silicon carbide-hafnium silicide dioxide silicon nanowires |
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