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:
Feb. 07, 1995
Filed:
Oct. 12, 1993
Tadahiko Watanabe, Tosu, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
Titanium carbide/nitride-zirconium oxide-based ceramics having high density, strength and toughness suited for cutting and wear-resisting tools heated above 200.degree. C. and containing tetragonal zirconium oxide that is stabilized to eliminate the susceptibility to thermal deterioration without the use of yttrium oxide or other conventional stabilizers. The titanium carbide/nitride-zirconium oxide-based ceramics are prepared by sintering a powdery mixture consisting of basic components of 90 to 10% by weight of titanium carbide and titanium nitride containing carbon and nitrogen in the mole ratios of 1:9 to 9:1 and 10 to 90% by weight of monoclinic zirconia or by adding 1 to 10% by weight of the total weight of the mixture of either or both of titanium and titanium oxide to the above basic components.