Patent ID: 9273400
Filing Date: 2016-03-01
CPC Classification: C23C,Y10T

Claim Text:
1. An erosion resistant coating for a substrate comprising: an inner coating layer affixed to the substrate formed from a metal or high metal content material; an outermost coating layer formed from a high hardness, high modulus of elasticity material, relative to the inner coating layer, wherein the high hardness, high modulus of elasticity material includes a combination of a ceramic material and a metal material; and two or more intermediate coating layers disposed between the inner coating layer and the outer coating layer, each intermediate coating layer formed from an applied mixture of the high hardness, high modulus of elasticity material and a metal material; wherein the coating has an increasing modulus of elasticity and hardness from the inner coating layer to the outer coating layer furthest from the substrate; and wherein a percent by volume of the metal material in the a first intermediate coating layer closest to the substrate is greater than a percent by volume of the metal material in a second intermediate coating layer farther from the substrate.