10112 C/C複合材料の耐熱接着技術(製造方法と強度,OS10 先進材料の力学と強度)

概要

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The formation technology into complicated shapes is often required for the applications of C/Cs to hot structures. A newly devised hybrid bonding method was proposed as a bonding technique for C/Cs, which is easily applicable and results in high strength. This bonding is composed of carbon bonding infiltrated with Si melt in the cracks in bonding layer. Thus the hybrid bonding is formed without pressurization. Optimum process conditions of the hybrid bonding were first explored. Then using the optimized procedure, the strength of the hybrid bonding using 2D-C/Cs as substrates was evaluated at temperatures up to 2000K. The strength of the hybrid bonding increased with rise in test temperature. This bonding strength enhancement was shown to be caused by the presence of SiC within bonding layer (crack arrester) and the release of thermal mismatch stress between the bonding layer and substrate C/Cs.
社団法人日本機械学会の論文
2005-03-17