Manufacturing process for a refractory material, protective coating that can be obtained with this process and uses of this process and this coating
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United States of America Patent
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Issued Date -
Sep 15, 2005
app pub date -
Jul 29, 2003
filing date -
Jul 30, 2002
priority date (Note) -
Abandoned
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Abstract
This invention relates to a process for manufacturing a refractory material, a protective coating, and uses of this process and this coating. The process comprises the following steps: a) deposit on the surface of a substrate or in a mould a first dispersion containing at least one metallic compound chosen from among borides, carbides and borocarbides containing at least one transition metal, in powder form, and a resin with a coke mass content equal to at least 30% after carbonization; b) dry the resulting deposit; c) cross-link the resin; d) carbonize the resin under an inert atmosphere; e) cover the deposit with a second dispersion containing Si in powder form and a binder; f) heat the deposit to a temperature greater than or equal to the melting temperature of Si, under an inert atmosphere. Applications: manufacture of propulsion parts and fuselage and wing elements for aerospace and aeronautical applications; manufacture of heat exchangers for thermal power stations; metallurgy; chemical industry; etc.
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