Synthesis and Characterization of SiC Ceramics for High Temperature Resistant Coatings and Matrix

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概要

• 論文の詳細を見る

• SiC ceramics are expected as oxidation resistant coating material for Carbon/Carbon (C/C) composites. In the present study, SiC ceramics were synthesized through Sol-Gel method with low environmental impact. The gels were synthesized from ethylalcohol, methyltriethoxysilane (MTES), hydrochloric acid (HCl) and purified water (H_2O), and it was pyrolyzed at 1000, 1500 and 1700℃. The structures of gels after heat treatment were analyzed by X-ray diffraction (XRD). XRD results indicated that β-SiC were obtained in the present method and crystallization was increased with increasing heat treatment temperature. There was little weight change in synthesized SiC obtained at 1000℃ in air, which results in lower weight changes in SiC coated C/C composites comparing with bare C/C composites. However, SiC coated C/C composites were also oxidized because of the generation of cracks during heat treatment at 1000℃. Residual tensile strength of SiC coated C/C composites were also higher than that of bare C/C composites after 5 minutes oxidation.

• 一般社団法人日本機械学会の論文
• 2006-04-15

著者

• WATANABE Hiroyuki

  Graduate School of Agriculture, Kyoto University

• KOBAYASHI Satoshi

  Graduate School of Science and Engineering, Tokyo Metropolitan University

• Wakayama Shuichi

  Graduate Student Tokyo Metropolitan University

• Wakayama Shuichi

  Graduate School Of Engineering Tokyo Metropolitan University

• Kobayashi Satoshi

  Graduate Student Tokyo Metropolitan University

• Fukushima Manabu

  Aist

• Watanabe Hiroyuki

  Graduate School Of Agriculture Kyoto University

• Watanabe Hiroyuki

  Graduate Student Tokyo Metropolitan University

• Kobayashi Satoshi

  Graduate School Of Engineering Tokyo Metropolitan University

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