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《Journal of Materials Science and Engineering》 2006-06
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Analysis of Sealing Characteristics of Carbon/Carbon Composites

HUANG Li-hai,LI He-jun,LIU Hao,HUANG Feng-ping(Reseach Center of Carbon/Carbon Composites,Northwestern Polytechnical University,Xi'an 710072,China)  
Gas leakage through carbon-fiber reinforced carbon matrix composites(C/C) which include lapped with carbon cloth C/C,carbon felt C/C and high strength graphite sealing ring material made in Russia were examined to enlarge the sealing application field of C/C in future space plane.Gas flow paths were identified by microscopic observations of C/C.The results show that the C/C is fitful for doing the sealing material than high strength graphite in the field of space run sealing material.Carbon felt C/C is better than carbon cloth C/C in seal characteristic.The punctural fiber,holes,cracks and the strength between fiber and carbon body have effect on the sealing characteristic.
【Fund】: 国家杰出青年基金资助项目(50225210)
【CateGory Index】: TB332
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