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:
May. 25, 2010
Filed:
Sep. 13, 2006
Jacobus C. Doesburg, Edmonton, CA;
Liangde Xie, Pearl River, NY (US);
Mitchell Dorfman, Smithtown, NY (US);
Jacobus C. Doesburg, Edmonton, CA;
Liangde Xie, Pearl River, NY (US);
Mitchell Dorfman, Smithtown, NY (US);
Sulzer Metco (US), Inc., Westbury, NY (US);
Abstract
The invention is directed to a ceramic material for use in thermal barriers for high temperature cycling applications and high temperature abradable coatings. The material is an alloy formed predominantly from ultra-pure zirconia (ZrO) and/or hafnia (HfO) that has uncharacteristically high sintering resistance to achieve a high service lifetime and low thermal conductivity to achieve high operating temperatures. In the material, oxide impurities such as soda (NaO), silica (SiO), alumina (AlO), titania (TiO), hematite (FeO), calcia (CaO), and magnesia (MgO) make up no more than 0.15 weight percent. The invention provides materials to produce a coating structure so that the changes in the coating microstructure over the in-service lifetime are either limited or beneficial.