1726 Ti繊維/Alアクティブコンポジットの作製と特性評価(J08-6 材料・構造,デバイス(2),J08 知的材料・構造システム)

概要

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This paper describes development of an active and sensitive composite based on a simple metahatrix composite. To realize this material system, continuous titanium fiber were embedded in an aluminum matrix, of which surfaces were oxidized to be insulated from the matrix to form a heater and a temperature/strain sensor. The results obtained in this study are as follows: (1) The oxide layer formed on the titanium fiber at 1073K for 1.8s in air remains unbroken up to about 0.6% tensile strain, (2) the curvature of the active composite at room temperature increases with increasing oxidation temperature of the titanium fiber in the experimental range, (3) the shape of the active composite at room temperature is reproducible after thermal cycles up to 813K, and (4) the curvature of the active composite during the thermal cycle up to about 490K changes without hysteresis.
2005-09-18