One component metal sintering additive for beta-SiC based on thermodynamic calculation and experimental observations

Title
One component metal sintering additive for beta-SiC based on thermodynamic calculation and experimental observations
Author(s)
노비얀토 알피안[노비얀토 알피안]윤당혁
Keywords
SILICON-CARBIDE CERAMICS; FUSION-REACTORS; COMPOSITES; MICROSTRUCTURE; DENSIFICATION; ISSUES; CARBON; BORON
Issue Date
201108
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
MATERIALS RESEARCH BULLETIN, v.46, no.8, pp.1186 - 1191
Abstract
Various types of metals were examined as sintering additives for beta-sic by considering the standard Gibbs formation free energy and vapor pressure under hot pressing conditions (1973-2123 K), particularly for applications in nuclear reactors. Metallic elements having the low long-term activation under neutron irradiation condition, such as Cr, Fe, Ta, Ti, V and W, as well as widely used elements, Al, Mg and B, were considered. The conclusions drawn from thermodynamic considerations were compared with the experimental observations. Al and Mg were found to be effective sintering additives, whereas the others were not due to the formation of metal carbides or silicides from the decomposition of SiC under hot pressing conditions. (C) 2011 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/24800http://dx.doi.org/10.1016/j.materresbull.2011.04.014
ISSN
0025-5408
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공과대학 > 신소재공학부 > Articles
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