@article{ref1,
title="Stability and heat resistance of silicide coatings on refractory metals. I. Effect of subsurface layer on process of phase redistribution in system WSi2-W",
journal="Powder Metallurgy and Metal Ceramics",
year="2002",
author="Zmii, V.I. and Kovtun, N.V.",
volume="41",
number="7-8",
pages="395-399",
abstract="The effect of a subsurface layer of metal suicide on the phase composition stability of high-temperature MeSi2-type coatings on refractory metals was investigated. Using the system WSi2-W as a prototype it was experimentally determined that a subsurface layer of the tungsten disilicide, and the distribution profile of silicon in the diffusion zone upon high-temperature heating have a substantial effect on the formation of a barrier layer of lower suicide which determines the stability of the system as a whole. It is proposed that the search for more stable suicide coatings on refractory metals should be directed toward the creation of diffusion barriers on not only the inner interface MeSi2-Me, but also the external surface of the coating. The process of coating formation must be accompanied by the formation of a metal suicide on the external surface with the highest possible concentration of silicon.<p /><p>Language: en</p>",
language="en",
issn="1068-1302",
doi="10.1023/A:1021121227445",
url="http://dx.doi.org/10.1023/A:1021121227445"
}