Processing of Open-Cell Silicon Carbide Foams by Steam Chest Molding and Carbothermal Reduction

Authors

  • Young-Wook Kim,

    Corresponding author
    1. Functional Ceramics Laboratory,Department of Materials Science and Engineering, University of Seoul, Seoul 130-743, Korea
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    • *Member, The American Ceramic Society.

  • Jung-Hye Eom,

    1. Functional Ceramics Laboratory,Department of Materials Science and Engineering, University of Seoul, Seoul 130-743, Korea
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  • Yanting Guo,

    1. The Key Laboratory of Polymer Processing Engineering, National Engineering Research Center of Novel Equipment for Polymer Processing, Ministry of Education of China, South China University of Technology, Guangzhou 510640, China
    2. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
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  • Wentao Zhai,

    1. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
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  • Chul B. Park,

    1. The Key Laboratory of Polymer Processing Engineering, National Engineering Research Center of Novel Equipment for Polymer Processing, Ministry of Education of China, South China University of Technology, Guangzhou 510640, China
    2. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
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  • In-Hyuck Song

    1. Engineering Ceramics Group, Korea Institute of Materials Science, Gyeongnam 641-831, Korea
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  • P. Greil—contributing editor

  • This study was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Knowledge Economy (MKE), Republic of Korea.

†Author to whom correspondence should be addressed. e-mail: ywkim@uos.ac.kr

Abstract

Open-cell silicon carbide (SiC) foams were fabricated using a newly developed process based on a steam chest molding and carbothermal reduction process. The fabrication process involved the following steps: (i) blending of a mixture of polysiloxane, carbon, hollow microsphere, and sintering additives (AlN–Y2O3), (ii) steam chest molding of the mixture, (iii) transforming the polysiloxane by pyrolysis into silicon oxycarbide, and (iv) fabricating SiC foams by carbothermal reduction and subsequent sintering.

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