In situ densification behavior in the pyrolysis consolidation of amorphousSi-N-C bulk ceramics from polymer precursors

Authors
Wan, JL Gasch, MJ Mukherjee, AK
Citation
Jl. Wan et al., In situ densification behavior in the pyrolysis consolidation of amorphousSi-N-C bulk ceramics from polymer precursors, J AM CERAM, 84(10), 2001, pp. 2165-2169
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
84
Issue
10
Year of publication
2001
Pages
2165 - 2169
Database
ISI
SICI code
0002-7820(200110)84:10<2165:ISDBIT>2.0.ZU;2-0
Abstract
In situ consolidation of amorphous Si-N-C ceramics during pyrolysis of poly mer precursor provides a way to consolidate bulk silicon nitride based cera mics at lower temperatures. Porosity evolution during polymer-ceramic conve rsion has been investigated to clarify the densification process. A densifi cation mechanism based on surface reaction and pyrolysis accommodated by vi scous flow has been proposed.