Patent ID: 7754043
Filing Date: 2010-07-13
Classification: C23C,G02B,Y02T,Y10T

Abstract:
1. A method for applying an optical coating to a gas turbine engine component having a surface, comprising the steps of: furnishing the gas turbine engine component having the surface; providing a deposition substrate separate from the gas turbine engine component, wherein the deposition substrate is made of a removable material that is a polyvinyl alcohol substrate or a polypropylene substrate; thereafter depositing the optical coating onto the deposition substrate at a first location, wherein the optical coating has a first face contacting the deposition substrate, and a second face remote from the first face, wherein the optical coating is a multilayer coating selected from the group consisting of alternating layers of Si and SiO, alternating layers of SiO transferring the optical coating to the surface of the gas turbine engine component using a transfer support at a second location remote from the first location; thereafter affixing the optical coating to the surface of the gas turbine engine component using a multilayer aluminosilicate tape by pressing the optical coating and the surface of the gas turbine engine component together with the multilayer aluminosilicate tape therebetween at an elevated temperature; and thereafter removing the transfer support completely.