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:
Sep. 17, 2002
Filed:
Jul. 06, 2000
Applicant:
Inventors:
Wolfgang Burger, Plochingen, DE;
Gundula Kiefer, Wernau, DE;
Eduardo Bellido, Ebersbach, DE;
Hans Andersch, Heiningen, DE;
Assignee:
Ceramtec AG Innovative Ceramic Engineering, Plochingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D 1/00 ; B24D 3/02 ; C04B 3/548 ;
U.S. Cl.
CPC ...
F27D 1/00 ; B24D 3/02 ; C04B 3/548 ;
Abstract
The invention relates to a sintered shaped body comprising a matrix material that contains an aluminum oxide/chromium oxide mixed crystal and an additional mixed crystal selected from at least one mixed crystal according to one of the general formulas La Al Cr O , Me Al Cr O Me Al Cr O , Me Al Cr O and/or Me Al Cr O , wherein Me stands for an alkali metal, Me represents an alkaline earth metal, Me stands for cadmium, lead or mercury and Me represents a rare earth metal and x has a value ranging from 0.0007 to 0.045.