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DSpace at KISTKIST Article 2004

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

Authors: Choi, HJ; Kim, YW; Mitomo, M; Nishimura, T; Lee, JH; Kim, 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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