| タイトル | Reaction zone microstructure in a Ti3Al + Nb/SiC composite |
| 著者（英） | Brindley, P. K.; Smith, S. D.; Baumann, S. F. |
| 著者所属（英） | NASA Lewis Research Center|Aluminum Co. of America |
| 発行日 | 1990-06-01 |
| 言語 | eng |
| 内容記述 | A composite of Ti-25Al-13Nb (atomic percent) matrix with a continuous SiC fiber (SCS-6) reinforcement was fabricated by hot pressing powder cloths and mats of fiber. The fiber/matrix reaction zone was studied using scanning electron microscopy (SEM) and transmission electron microscopy/analytical electron microscopy (TEM/AEM) techniques. The extent of reaction was determined, phases were identified, and solute partitioning among the phases was determined. It was found that the matrix had reacted only with a portion of the carbon-rich outer layer of the SCS-6 fiber. The reaction zone contained two concentric zones which are distinguished by the presence of different carbide phases. Both zones contained a hexagonal Si-bearing phase, and one of the zones also contained some fine scattered porosity. The results are discussed with reference to available phase equilibria data. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 90A39627 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/355456 |
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