Patent ID: 7942343

Claim:
A fuel injector assembly comprising: a first fuel injector component having a substrate material, a first coating of a first material, and a bond layer between the substrate material and the first coating, the bond layer being of a different material than the first coating; at least one second fuel injector component having a substrate material, a second coating of a second material, and a bond layer between the substrate material and the second coating, the bond layer being of a different material than the second coating, wherein the first and second coatings are in sliding engagement during operation of the fuel injector assembly; and wherein the first material and second material are selected from a group consisting of zirconium nitride, chromium nitride, molybdenum nitride, titanium-carbon-nitride and zirconium-carbon-nitride, and wherein the bond layers on the first and second fuel injector components are between about 0.05 and 0.50 microns thick.