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. 02, 1999
Filed:
Mar. 10, 1997
Applicant:
Inventor:
Yasuaki Unno, Fujisawa, JP;
Assignee:
Isuzu Ceramics Research Institute Co., Ltd., Fujisawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501127 ; 501152 ; 501153 ;
Abstract
A low frictional ceramic material for sliding member, consists essentially of oxide of aluminum (Al) and oxide of zirconium (Zr) and contains oxide of cerium (Ce). Aluminum (Al) content is 50 to 75 wt. % in terms of alumina (Al.sub.2 O.sub.3), zirconium (Zr) content is 20 to 45 wt. % in terms of zirconia (ZrO.sub.2), and cerium (Ce) content is 3 to 20 wt. % in terms of ceria (CeO.sub.2)in said low frictional ceramic material for sliding member. Instead of oxide of aluminum (Al) and oxide of zirconium (Zr), it is capable to use a .alpha.-sialon.