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. 28, 1990
Filed:
Oct. 03, 1988
Applicant:
Inventors:
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 87 ;
Abstract
A sintered body containing ZrB.sub.2 is obtained by sintering a starting powder material containing not less than 50% by weight of a starting powder mixture consisting essentially of Cr.sub.3 C.sub.2 and a boride represented by the formula (XB.sub.2).sub.n wherein n represents an integer of 1 or 2 and when n is 1, X represents a zirconium atom and when n is 2, X represents a zirconium atom and a titanium atom, respectively and B represents a boron atom. The weight ratio of the Cr.sub.3 C.sub.2 : the boride is 50 to 0.5:50 to 99.5.