Title: Effect of Heat Exposure on the Microstructures and Mechanical Properties of 3Al <sub>2</sub> O <sub>3</sub> ·2SiO <sub>2</sub> /Si/SiC Coating System
Abstract: Chapter 41 Effect of Heat Exposure on the Microstructures and Mechanical Properties of 3Al2O3·2SiO2/Si/SiC Coating System Ryo Inoue, Ryo Inoue Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorKazuma Chikamoto, Kazuma Chikamoto Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorYasuo Kogo, Yasuo Kogo Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorHideki Kakisawa, Hideki Kakisawa National Institute for Materials Science (NIMS), Sengen, Tsukuba, Ibaraki, JapanSearch for more papers by this author Ryo Inoue, Ryo Inoue Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorKazuma Chikamoto, Kazuma Chikamoto Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorYasuo Kogo, Yasuo Kogo Department of Materials Science and Technology, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, JapanSearch for more papers by this authorHideki Kakisawa, Hideki Kakisawa National Institute for Materials Science (NIMS), Sengen, Tsukuba, Ibaraki, JapanSearch for more papers by this author Book Editor(s):Mrityunjay Singh, Mrityunjay SinghSearch for more papers by this authorTatsuki Ohji, Tatsuki OhjiSearch for more papers by this authorShaoming Dong, Shaoming DongSearch for more papers by this authorDietmar Koch, Dietmar KochSearch for more papers by this authorKiyoshi Shimamura, Kiyoshi ShimamuraSearch for more papers by this authorBernd Clauss, Bernd ClaussSearch for more papers by this authorBernhard Heidenreich, Bernhard HeidenreichSearch for more papers by this authorJun Akedo, Jun AkedoSearch for more papers by this author First published: 10 May 2017 https://doi.org/10.1002/9781119407270.ch41Citations: 1Book Series:Ceramic Transactions Series AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Abstract This chapter discusses how a 3Al2O3.2SiO2/Si/SiC environmental barrier coating (EBC) system was fabricated by the atmospheric plasma spray process. Microstructural characteristics and mechanical properties after heat exposure at 1300Υ for 1, 50, and 100 h were investigated. The Young's modulus and hardness of as-deposited and heat-exposed mullite EBC layer were 98 GPa and 100 GPa, respectively. These physical properties increased after heat exposure because mullite crystallizes during heating. The mullite/Si/SiC model EBC system was successfully fabricated by the APS process. The amorphous mullite contained in the EBC layer crystallizes during heating, leading to nucleate micro cracks. The initial Young's modulus of the EBC layer is smaller than the crystallized mullite EBC layer. After heat exposure, the SiO2 phase precipitates and the Young's modulus of the mullite layer around SiO2 becomes smaller than that of the isolated region. Citing Literature Advances in High Temperature Ceramic Matrix Compo sites and Materials for Sustainable Development; Ceramic Transactions, Volume CCLXIII, Volume 263, First Edition RelatedInformation
Publication Year: 2017
Publication Date: 2017-05-10
Language: en
Type: other
Indexed In: ['crossref']
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Cited By Count: 3
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