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. 05, 2003
Filed:
Jul. 01, 2002
Beate Heimberg, Berlin, DE;
Wolfram Beele, Ratingen, DE;
Karl Kempter, München, DE;
Ulrich Bast, München, DE;
Thomas Haubold, Weinheim, DE;
Michael Hoffmann, Böblingen, DE;
Axel Endriss, Stuttgart, DE;
Peter Greil, Weisendorf, DE;
Chu-Wan Hong, Stainz, DE;
Fritz Aldinger, Leinfelden-Echtingen, DE;
Hans J. Seifert, Stuttgart, DE;
Other;
Abstract
An article that is particularly well suited for use as a gas turbine engine component has a metallic substrate and a ceramic thermal barrier layer including a mixed metal oxide system comprising a compound selected from the group consisting of (i) a lanthanum aluminate and (ii) a calcium zirconate, the calcium in which is partially replaced by at least one calcium-substitute element, such as strontium (Sr) or barium (Ba). In addition, the lanthanum in the lanthanum aluminate can be partially replaced by a lanthanum-substitute element from the lanthanide group, particularly gadolinium (Gd). A process for producing such an article comprises providing a pre-reacted mixed metal oxide system as described above and applying it to the substrate by plasma spraying or an evaporation coating process.