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:
Dec. 08, 1992
Filed:
Jan. 22, 1991
Applicant:
Inventors:
Ned E Cipollini, Vernon, CT (US);
Beili L Wu, Morristown, NJ (US);
Stephen Haig, Highland Park, NJ (US);
Jean Yamanis, Morristown, NJ (US);
Assignee:
Allied-Signal Inc., Morristownship, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ; C01G / ;
U.S. Cl.
CPC ...
501117 ; 501 12 ; 501108 ; 501126 ; 501152 ; 252518 ; 252521 ; 423263 ; 423593 ; 423606 ;
Abstract
A lanthanum chromite ceramic powder mixture that consists essentially of 1 mol of LaCr.sub.1-x M.sub.x O.sub.3, where M is a divalent metal selected from the group consisting of magnesium, calcium and mixtures thereof and x ranges from 0.03 to 0.3; y mols of B.sub.2 O.sub.3, where y ranges from 0.005 to 0.04; and z mols of La.sub.2 O.sub.3, where the ratio z/y ranges from 1.1 to 3. The mixture is formed into powder compacts and sintered to near full density at temperatures as low as 1400.degree. C.