【摘 要】
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The three-dimensionally carbon fibres reinforced ZrC-SiC matrix composite (Cf/ZrC-SiC) were manufactured by joint processes of precursor infiltration and pyrolysis (PIP) and reactive melt infiltration
【机 构】
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Science and Technology on Advanced Ceramic Fibers and Composites Laboratory,National University of D
【出 处】
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特种粉末冶金及复合材料制备/加工第一届学术会议
论文部分内容阅读
The three-dimensionally carbon fibres reinforced ZrC-SiC matrix composite (Cf/ZrC-SiC) were manufactured by joint processes of precursor infiltration and pyrolysis (PIP) and reactive melt infiltration (RMI).It was found that the SiC phase introduced by PIP process were the main constituent in the carbon bundle.The ZrC phase formed on the edge of pyrolytic carbon by RMI process made residual Zr2Si stayed inside of the matrix.With the increase of the infiltration temperature from 1600 to 1800 ℃, the content of residual Zr2Si alloy in the Cf/ZrC-SiC composites showed an obiously decrease.However, the tensile stress of carbon fibres in the Cf/ZrC-SiC composites increased with the rising infiltration temperature, which would result in more voids in the Cf/ZrC-SiC composite.Besides, the flexural strengths of the composites were comparable with the value obtained by different infiltration temperature.
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