Intergranular glassy phase free SiC ceramics retains strength at 1500 degrees C

Authors
Choi, HJKim, YWMitomo, MNishimura, TLee, JHKim, DY
Issue Date
2004-05
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.50, no.9, pp.1203 - 1207
Abstract
We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 degreesC. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keywords
HIGH-TEMPERATURE STRENGTH; SILICON-NITRIDE CERAMICS; ALUMINUM NITRIDE; FILMS; BEHAVIOR; CARBIDE; DEFORMATION; THICKNESS; OXIDE; HIGH-TEMPERATURE STRENGTH; SILICON-NITRIDE CERAMICS; ALUMINUM NITRIDE; FILMS; BEHAVIOR; CARBIDE; DEFORMATION; THICKNESS; OXIDE; sintering; grain boundary structure; high-resolution electron microscopy; modeling; silicon carbide
ISSN
1359-6462
URI
https://pubs.kist.re.kr/handle/201004/137650
DOI
10.1016/j.scriptamat.2004.02.008
Appears in Collections:
KIST Article > 2004
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