Patent ID: 7311979

Claim:
A hydrocarbon fluid containment article through which a hydrocarbon fluid flows, the hydrocarbon fluid containment article comprising: a wall having a first surface and an oppositely-disposed second surface, each of the first and second surfaces having a surface finish; a first coating system on the first surface of the wall and wetted by the hydrocarbon fluid, the first coating system comprising an outermost layer consisting of platinum and a ceramic barrier layer between the outermost layer and the wall, the hydrocarbon fluid contacting and flowing across the outermost layer, the platinum of the outermost layer catalyzing the hydrocarbon fluid to form particulates of carbonaceous gum substances suspended within the hydrocarbon fluid, the ceramic barrier layer being sufficiently thick to inhibit interdiffusion between the outermost layer and the wall; and a second coating system on the second surface of the wall and exposed to an environment at a temperature higher than the hydrocarbon fluid, the second coating system comprising an outermost layer of platinum and a ceramic barrier layer between the outermost layer and the wall, the outermost layer being exposed to the environment so as to reflect radiant energy into the environment; wherein each of the outermost layers and each of the ceramic barrier layers is deposited by chemical vapor deposition so that the first coating system has a surface finish that replicates the surface finish of the first surface of the wall and the second coating system has a surface finish that replicates the surface finish of the second surface of the wall.