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:
Jan. 15, 1980
Filed:
Mar. 20, 1978
Applicant:
Inventors:
Friedrich J Esper, Leonberg, DE;
Karl-Hermann Friese, Leonberg, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; G01N / ;
U.S. Cl.
CPC ...
2041 / ; 106 57 ;
Abstract
Stabilized zirconium dioxide compositions sintered with a silicate flux and stabilized with (i) calcium oxide and (ii) magnesium oxide. The stabilized zirconium dioxide can be sintered at temperatures between 1460.degree. C. and 1480.degree. C. to form solids having high mechanical strength and a specific resistance of 1M.OMEGA.cm at a low temperature. The invention also provides oxygen sensors containing at least one measuring cell which is an oxygen concentration cell having two electrodes separated by and in ionic communication through a solid stabilized zirconium dioxide electrolyte which is prepared from the said compositions.