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, 2008
Filed:
Jan. 27, 2004
Mats Sundberg, Västerås, SE;
Kjell Lindgren, Hallsjahammar, SE;
Tamer El-raghy, Philadelphia, PA (US);
Gustav Malmqvist, Västerås, SE;
Mats Sundberg, Västerås, SE;
Kjell Lindgren, Hallsjahammar, SE;
Tamer El-Raghy, Philadelphia, PA (US);
Gustav Malmqvist, Västerås, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
The present invention relates to a material for use at temperatures exceeding 1200° C. and in oxidizing atmospheres consisting generally of an alloy between a metal, aluminium (Al) and carbon (C) or nitrogen (N). The invention is characterized in that the alloy has a composition MAlXwhere M essentially consists of titanium (Ti), chromium (Cr) and/or niobium (Nb) and where X is carbon (C) or where X is nitrogen (N) and/or carbon (C) when M is titanium (Ti); and in that z lies in the range of 1.8 to 2.2, y lies in the range of 0.8-1.2 and w lies in the range 0.8-1.2, and wherein a protective oxide layer of AlOis formed after heating to the mentioned temperature.