Patent ID: 8118561
Filing Date: 2012-02-21
Classification: C23C,F01D,F05D,Y10T

Abstract:
1. An erosion- and impact-resistant ceramic coating on a surface subjected to collisions with particles, the ceramic coating being deposited by a physical vapor deposition process to have a columnar and/or dense microstructure, a total coating thickness of up to about 100 micrometers, and a composition chosen from the group consisting of: at least one layer of TiAlN having a thickness of about 25 to about 100 micrometers; multiple layers of CrN and TiAlN such that layers of CrN are between layers of TiAlN, each layer having a thickness of about 0.2 to about 1.0 micrometers to yield a total coating thickness of at least about 3 micrometers; and at least one layer of TiSiCN having a thickness of about 15 to about 100 micrometers.