ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The microstructure and oxidation resistance of MSi2-SiC or MSi2-Si3N4nanocomposite coatings (M = Mo, W, Nb, Ta) on M substrates formed by displacementreactions between M-carbides or M–nitrides and silicon, respectively, was investigated. Presentstudy demonstrated that the crack density formed in the MSi2-base nanocomposite coatings dueto mismatch in the coefficient of thermal expansion between nanocomposite coatings and Msubstrates could be controlled by adjusting the volume fraction of the SiC or Si3N4 reinforcingparticles with the low CTE values. The high- and low-temperature oxidation resistance ofnanocomposite coatings was superior to that of monolithic MSi2 coatings
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.135.pdf
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