| Autor: |
A. C. Young, Ogbemi O. Omatete, T. N. Tiegs |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings |
| DOI: |
10.1002/9780470313831.ch26 |
| Popis: |
Nicalon fiber-reinforced, reaction-bonded silicon nitride (RBSN) composites were made by gelcasting green bodies of Si and fibers and nitriding the composites in a 2.45-GHz microwave furnace. The bodies were prepared by casting a 48 vol % slurry of silicon into a mold containing unidirectional fibers cut to the length of the mold. The extent of nitridation and the properties of the reaction-bonded silicon nitride composites were measured. Fracture surfaces of the composites processed at 1250{degree}C for 8 h showed significant fiber pullout; however, those nitrided at 1350{degree}C for 4 h exhibited only limited fiber pullout indicating possibly some degree of fiber degradation and strong matrix-fiber bonding. 17 refs., 3 figs., 1 tab. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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