Effect of hot corrosive environment on ceramics |
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| Affiliation: | 1. Japan Ultra-high Temperature Materials Research Institute (JUTEMI), 573-3 Okiube, Ube-city, Yamaguchi 755-0001, Japan;2. Research Center for Advanced Energy Conversion, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan;1. Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Óptica, A.P. 1-948, León, Gto. 37150, Mexico;2. Centro de Nanociencias y Nanotecnología UNAM, Km 107 Carretera Tijuana-Ensenada, Ensenada, B.C. 22860, Mexico;1. Lviv Polytechnic National University, 12 Bandera Street, 79013 Lviv, Ukraine;2. Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany;1. Department of Physics, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Kolkata 700009, India;2. Institute of Materials Research and Engineering (IMRE), Agency for Science Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore |
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| Abstract: | We investigated the effect of moisture on the high-temperature stability of several ceramics at 1700 °C in an atmosphere of oxygen/water vapor (O2/H2O). The melt growth composite (MGC) which is composed of alumina/yttrium-aluminum-garnet, Al2O3/YAG, was the most stable among ceramics at 1700 °C in this atmosphere, showing only a slight change in microstructure, flexural strength and volume after an exposure for 200 h. Thus, MGCs are among the most promising ceramics for structural applications at ultra-high temperatures. |
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