ゾル-ゲル法によるC/C複合材料の界面制御に関する研究(C/C,OS.14 先進材料の力学)

概要

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To improve the fiber efficiency of C/C composites by controlling the fiber/matrix interface of C/C composite optimally, Si-C-O interface layer by Sol-Gel method were applied. Heat treatments at four temperature conditions were conducted to obtain the optimum condition to synthesize Si-C-O interface. The X-ray diffraction indicated that the crystallization of SiC increased with increasing temperature. To compare tensile properties of four heat treated gel, C/Si-C-O composites were fabricated. From the tensile test results the temperature condition of 1500℃ is considered as the optimum condition. Bundle C/C composites were fabricated and tested. So they showed low fiber efficiency. To confirm damage of fiber during heat treatment and fiber efficiency of single fiber C/C composite, tensile tests on single fiber, single fiber CFRP and single fiber C/C composites were conducted. The results of the single fiber tensile tests showed that single fiber C/C composite had no degradation of fiber efficiency.
社団法人日本機械学会の論文
2004-03-03