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宇宙往還機用高性能C/C複合材の開発

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川崎製鉄技報

KAWASAKI STEEL GIHO Vol.21 (1989) No.4

宇宙往還機用高性能C/C複合材の開発

Development of Advanced Carbon-Carbon Composite for Spaceplane Application

金 城 庸 夫(Tsuneo Kinjo) 高野 茂(Shigeru Takano) 長谷川 和広(Kazuhiro Hasegawa) 江波戸 修(Osamu Ebato) 宇留野 智之(Tomoyuki Uruno)

要旨 :

スペースプレーンの適用を目的とした優れた機械特性および耐酸化特性を有する高性能炭 素繊維強化炭素複合材(C/C 複合材)を開発した。炭素繊維織布で2次元的に強化した C/C 複 合材の製造法およびSiC による多層被覆を検討し,機械特性および 500℃から 1700℃の温 度範囲における耐酸化性を調べた。その結果,引張強度 323MPa,引張弾性率 132GPa, 曲げ強度417MPa,曲げ弾性率 119GPa,圧縮強度 264MPa 圧縮弾性率 129GPa の高強度・ 高剛性C/C 複合材を得た。また,多層被覆により 1700℃の空気酸化に耐えた。

Synopsis :

Advanced carbon-carbon composites for spaceplane application have been developed which have high mechanical properties and good oxidation resistant coating. The C/C composites are reinforced with two-dimensional carbon fiber fabrics and coated with multiple SiC layers chemical vapor deposition. After the evaluation of the mechanical properties, the C/C composites have been exposed to an oxidative atmosphere in a temperature range between 500℃ and 1700℃. The C/C composites have exhibited a tensile strength of 323MPa, tensile modulus of 132 GPa, flexural strength of 417 MPa, flexural modulus of 119 GPa, compressive strength of 264 MPa, and compressive modulus of 129 GPa. The multilayer coating has been found capable of protecting the C/C composite against air oxidation up to 1700℃.

(c)JFE Steel Corporation, 2003

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