The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2003
Filed:
Dec. 22, 1994
David William Skelly, Burnt Hills, NY (US);
Bangalore Aswatha Nagaraj, West Chester, OH (US);
David John Wortman, Hamilton, OH (US);
David Vincent Rigney, Cincinnati, OH (US);
Seetha Ramaiah Mannava, Cincinnati, OH (US);
Rudolfo Viguie, Cincinnati, OH (US);
Robert William Bruce, Loveland, OH (US);
Warren Arthur Nelson, Cincinnati, OH (US);
Curtis Alan Johnson, Schenectady, NY (US);
Bhupendra Kumar Gupta, Cincinnati, OH (US);
General Electric Co., Schnectedy, NY (US);
Abstract
An article having a substrate is protected by a thermal barrier coating system. An interfacial layer contacts the upper surface of the substrate. The interfacial layer may comprise a bond coat only, or a bond coat and an overlay coat. The interfacial layer has on its upper surface a preselected, controllable pattern of three-dimensional features, such as grooves in a parallel array or in two angularly offset arrays. The features are formed by an ablation process using an ultraviolet laser such as an excimer laser. A ceramic thermal barrier coating is deposited over the pattern of features on the upper surface of the interfacial layer.