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:
Mar. 04, 2008
Filed:
May. 21, 2003
Applicants:
Willem J. Quadakkers, Wiinandsrade, NL;
Werner Stamm, Mülheim, DE;
Inventors:
Willem J. Quadakkers, Wiinandsrade, NL;
Werner Stamm, Mülheim, DE;
Assignees:
Siemens Aktiengesellschaft, Munich, DE;
Forschungszentrum Julich GmbH, Julich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/00 (2006.01); B32B 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
MCrAl layers according to prior art often display chipping of the thermally grown aluminum oxide layer (TGO) as a result of thermally induced stresses, which significantly reduces the oxidation behavior or the bonding behavior of ceramic heat insulating layers. An inventive MCrAl layer is designed in such a way that the TGO created thereon is microporous and thus allows expansion. The microporosity of the TGO is ensured by adding elements into the MCrAl layer in a targeted manner.