Patent ID: 7942638

Claim:
A turbomachine blade comprising: a blade body including a blade vane and a blade tip at one end of said blade vane; an armor cladding disposed on at least said blade tip of said blade body; and a coating disposed on at least said armor cladding on said blade tip of said blade body; wherein said coating comprises at least one multilayer coating system, and each said multilayer coating system respectively comprises at least four different layers that are stacked successively on one another and that include a first layer arranged closest to said armor cladding, a second layer arranged on said first layer, a third layer arranged on said second layer, and a fourth layer arranged farthest from said armor cladding on said third layer, and wherein said first layer comprises a metal material, said second layer comprises a metal alloy material, said third layer comprises a graded metal-ceramic material, and said fourth layer comprises a ceramic material.