Abstract: Disclosed is a hard coating film formed on a hard base material such as cemented carbide. The hard coating film has a nanoscale multilayered structure to have improved oxidation resistance and wear resistance. The hard coating film is a hard coating film formed on the base material. The first layer is composed of a TiAl nitride having a composition of Ti1-aAla (0.3?a?0.7), and the second layer has a nanoscale multilayered structure or a structure in which the nanoscale multilayered structure is repeatedly laminated at least two times, the nanoscale multilayered structure including a thin layer A composed of an AlTiSi nitride, a thin layer B, a thin layer C composed of a AlCr nitride, and a thin layer D having thicknesses of 3 nm to 20 nm. The thin film B and the thin film D are composed of a TiAl nitride.

Abstract: A film formation substrate is arranged such that (i) a base end, in a y-axis direction, of a film-thickness-gradually-diminishing part of a first film overlaps a first film formation region, and (ii) a film-thickness-gradually-diminishing part of a second film is disposed on an outside, in the y-axis direction, of a second film formation region and overlaps the film-thickness-gradually-diminishing part of the first film so as to compensate for a gradually diminished thickness of the film-thickness-gradually-diminishing part.

Abstract: One exemplary embodiment of a turbine component (which may be a blade) comprises a substrate comprising a silicide-based material, a plurality of through holes disposed in the substrate, the holes being configured to receive an airflow, a silicide coating disposed at the surfaces of the substrate and the through holes, and a thermal barrier coating disposed at the silicide coating. In another exemplary embodiment the silicide coating may be replaced by a Laves phase-containing layer. In still another exemplary embodiment the silicide coating may be replaced by a diffusion barrier layer disposed at a surface of the substrate and a platinum group metal layer disposed at the diffusion barrier layer. One exemplary embodiment of a blade may comprise an airfoil comprising a silicide-based material and through holes disposed therein, a cooling plenum disposed in the airfoil, and a base configured to receive the airfoil in a dovetail fit, the base comprising a superalloy.

Abstract: A sandwich ARC structure for preventing metal to contact from shifting, the sandwich ARC structure comprising a first Ti layer formed on a metal laer and a first TiN layer formed on the first Ti layer. A second Ti layer is formed on the first TiN layer and a second TiN layer is formed on the second Ti layer. Wherein the sandwich ARC structure formed of first Ti/first TiN/second Ti/second TiN will reduces the tress between said metal layer and a dielectric layer formed below the metal layer.