Abstract:
PROBLEM TO BE SOLVED: To provide a thick coating which can be used for a brush seal, has a long life and is free from crack. SOLUTION: This coating for a brush seal, in which a brush bristle is formed with a super alloy, has a nickel - chromium matrix which has a standard particle size of abut 44-15μm and contains a hard carbide phase of about 40-60vol% essentially made of a chromium carbide, and the nickel - chromium matrix contains, by nominal composition, about 80% Cr and about 20% Ni. The chromium carbide phase preferably and further contains either one of a titanium carbide, a tungsten carbide, a vanadium carbide and an optional mixture thereof.
Abstract:
The present invention relates to a coating system for engine components which exhibits improved erosion resistance and a method for forming the coating system on the engine components. The coating system is formed by a fluororelastomeric material which is co-cured or bonded with the organic matrix material forming the engine component. The coating system is applied to the engine component by overlaying a thin sheet of the fluoroelastomeric material in a cured or uncured state over a preform of the engine component, placing the preform and the fluoroelastomeric material in a molding device, and heating the engine component preform and the fluoroelastomeric material to a temperature at or above about 340 DEG F to effect co-curing and/or bonding.
Abstract:
PLASMA APPLICATION OF THERMAL BARRIER COATINGS WITH REDUCEDTHERMAL CONDUCTIVITY ON COMBUSTOR HARDWAREA process for forming a thermal barrier coatingcomprises the steps of providing a substrate, providing agadolinia stabilized zirconia powder, and forming a thermalbarrier coating having at least one of a porosity in arange of from 5 to 20% and a dense segmented structure onsaid substrate by supplying the gadolinia stabilized powderto a spray gun and using an air plasma spray technique.FIGURE 1