| タイトル | Characterization of SiCSiC Composites in Support of Environmental Degradation Modeling |
| 本文（外部サイト） | http://hdl.handle.net/2060/20160010294 |
| 著者（英） | McCue, Terry; Bhatt, Ram; Sullivan, Roy; Kiser, Doug; Zima, John; Smith, Craig |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2016-01-25 |
| 言語 | eng |
| 内容記述 | SiCSiC (silicon carbide fiber reinforced silicon carbide) composites are candidate materials for various turbine engine applications because of their high specific strength and good creep and oxidation resistance at elevated temperatures. This study was performed to characterize the microstructure of a melt infiltrated (MI) SiCSiC, and to examine environmental degradation mechanisms occurring in precracked MI SiCSiC CMC specimens under tensile stresses of 30 ksi or less at 815C in dry air or argon. In addition, the oxidation of the BN interface was characterized at815C, and crack opening displacement as a function of stress measurements were made. This material characterization is being performed to obtain data to support NASA GRC modeling of SiCSiC environmental degradation. The comparison of experimentally-observed phenomena with model predictions can lead to improved understanding of material degradation mechanisms. |
| NASA分類 | Inorganic, Organic and Physical Chemistry |
| レポートNO | GRC-E-DAA-TN29417 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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