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Oxidation behavior of ytterbium silicide |
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| Authors: | Toshihisa Miyazaki Syo Usami Ryo Inoue Yasuo Kogo Yutaro Arai |
| Affiliation: | 1. Department of Materials Science & Technology Tokyo University of Science, 6-3-1, Niijyuku, Katsushika-ku, Tokyo 125-8585, Japan;2. Katayanagi Advanced Research Laboratories, Tokyo University of Technology, 1404-1 Katakuramachi, Hachioji, Tokyo 192-0982, Japan |
| Abstract: | Si-rich ytterbium silicide was fabricated by through an arc-melting technique for applying use as a bond coat material in an environmental barrier coating system. Evaluation of its potential was accomplished through oxidation tests in dry air and an inert atmosphere. The experimental results showed that the changes in weight and morphologies of ytterbium silicide observed after the tests depended on the oxygen partial pressure. Extensive oxidation and weight gain occurred after oxidation in air. In order to apply this material for hot structures, improvement of the oxidation resistance is needed. |
| Keywords: | Ytterbium silicide Oxidation Arc-melting Bond coat Silicates |
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