F-1508 高エンタルピー気流中におけるチラノLox-M繊維 : Si-Ti-C-O基複合材料の熱応答と酸化挙動(S54-2 耐熱材料・耐熱構造(2))(S54 耐熱材料・耐熱構造)

概要

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National Aerospace Laboratory of Japan (NAL) has conducted a joint program to develop a continuous fiber reinforced ceramic matrix composite (CMC) for aerospace applications. The composite is referred to as NUSK-CMC from the initials of the collaborators, which exhibits excellent tensile strength and creep strength up to 1200℃ in air. It has been attempted to apply NUSK-CMC to thermal protection system (IPS) of a future reusable space transportation system (space plane). For the purpose, thermal response and oxidation behavior under atmospheric re-entry condition were investigated using an arc jet facility. As a result, it was revealed that catalytic effect at the NUSK-CMC surface under plasma air stream was not significant. Furthermore, surface recession was hardly observed below 1450℃ in surface temperature and above 5 kPa in oxygen partial pressure at the stagnation point, because passive oxidation was dominant under the heating condition. Passive-to-active oxidation transition of the composites agreed with the Balat's theory for silicon carbide under the present experimental condition.
一般社団法人日本機械学会の論文
2001-08-22