Ceramic corrosion resistant coating for oxidation

专利名称：Ceramic corrosion resistant coating for

oxidation resistance

发明人：Hazel, Brian Thomas,Pfaendtner,

Jeffrey,Mcevoy, Kevin Paul,Nagaraj,Bangalore Aswatha

申请号：EP07119960.8申请日：20071105公开号：EP1927675A1公开日：20080604

摘要：A coating (403) and a method for forming the coating (403), the methodincluding coating a surface of a gas turbine engine turbine component having a metallicsurface that is outside the combustion gas stream and exposed to cooling air duringoperation of the engine. A gel-forming solution including a ceramic metal oxide precursoris provided. The gel-forming solution is heated to a first preselected temperature for afirst preselected time to form a gel. The gel is then deposited on the metallic surface.Thereafter the gel is fired at a second preselected temperature above the first

preselected temperature to form a ceramic corrosion resistant coating (403) comprisinga ceramic metal oxide is selected from the group consisting of zirconia, hafnia andcombinations thereof. The ceramic corrosion resistant coating (403) having a thickness ofup to about 127 microns and remaining adherent at temperatures greater than about1000 °F.

申请人：General Electric Company

地址：One River Road Schenectady, NY 12345 US

国籍：US

代理机构：Szary, Anne Catherine

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