In Situ Densification Behavior in the Pyrolysis Consolidation of Amorphous Si‐N‐C Bulk Ceramics from Polymer Precursors
In situ consolidation of amorphous Si‐N‐C ceramics during pyrolysis of polymer precursor provides a way to consolidate bulk silicon nitride based ceramics at lower temperatures. Porosity evolution during polymer‐ceramic conversion has been investigated to clarify the densification process. A densifi...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2001-10, Vol.84 (10), p.2165-2169 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | In
situ
consolidation of amorphous Si‐N‐C ceramics during pyrolysis of polymer precursor provides a way to consolidate bulk silicon nitride based ceramics at lower temperatures. Porosity evolution during polymer‐ceramic conversion has been investigated to clarify the densification process. A densification mechanism based on surface reaction and pyrolysis accommodated by viscous flow has been proposed. |
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| ISSN: | 0002-7820 1551-2916 |
| DOI: | 10.1111/j.1151-2916.2001.tb00982.x |