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:
Aug. 28, 2012
Filed:
Aug. 25, 2008
Hans-peter Bossmann, Lauchringen, DE;
Dietrich Eckardt, Ennetbaden, CH;
Hans-Peter Bossmann, Lauchringen, DE;
Dietrich Eckardt, Ennetbaden, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A method for designating a component, coated with a heat insulation layer including zirconium dioxide (ZrO) stabilized with yttrium oxide (YO) [YSZ], and for determining its operating time or operating temperature is provided. The method includes doping the heat insulation layer and marking the doped heat insulation layer, with at least one metal oxide in at least one surface region of the component. The metal oxide is selected such that the doped region of YSZ is visible or can be made optically visible in order to designate the component. The method also includes comparing a slower or faster change in lattice parameters of the doped YSZ region, as compared with undoped YSZ, and determining the operating time of the component under temperature by comparing the lattice parameters with a known calibrating characteristic curve.