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:
Sep. 18, 1990
Filed:
Sep. 26, 1989
Applicant:
Inventors:
Assignee:
Hoechst CeramTec Aktiengesellschaft, Selb, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C01B / ;
U.S. Cl.
CPC ...
4283126 ; 423345 ; 427243 ; 427244 ; 427299 ; 4283186 ; 428408 ; 428446 ;
Abstract
For producing a component of silicon-infiltrated silicon carbide, having a porous sliding surface, a component of silicon-infiltrated silicon carbide (composition: 40-95% by weight of SiC, 1-45% by weight of carbon particles of grain size 0.1 to 500 .mu.m and 1-25% by weight of silicon) is machined on parts of the surface, a sliding surface thus being produced. The resulting component is heated in an oxygen-containing atmosphere at temperatures from 700.degree. to 1410.degree. C. until the carbon particles present in the sliding surface have been at least partially oxidized with the formation of pores.