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. 21, 1991
Filed:
May. 12, 1989
Applicant:
Inventors:
Neville Sonnenberg, Johannesburg, ZA;
Angus I Kingon, Cary, NC (US);
Adrian W Paterson, Pretoria, ZA;
Assignee:
CSIR, , ZA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501103 ; 501104 ; 501152 ;
Abstract
The invention provides a sintered ceria/zirconia ceramic and a method of making it. The product comprises a substantially homogeneous mixture of 76-92 mole % zirconia, 8-20 mole % ceria and 0.1-1.2 mole % lanthana and/or praseodymia. The method involves heating an artifact comprising said mixture to a temperature in the range 1200.degree.-1700.degree. C.