Diffusion barrier for assemblies with metallic and silicon containing components and method therefor

摘要

A method for inhibiting diffusion of silicon into a support structure (14) from a component (12) formed of a silicon-containing material, and an assembly (10) formed thereby. The component (12) is supported and contacted by the support structure (14) so as to define a contact interface therebetween. An barrier coating (18) is present on the component (12) and/or the support structure (14), so as to be disposed at the contact interface to prevent direct physical contact between the silicon-containing material and the superalloy substrate.