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:
Mar. 14, 2006
Filed:
Dec. 06, 2002
Moritz Bauer, Augsburg, DE;
Martin Christ, Wehringen, DE;
Udo Gruber, Neusaess, DE;
Andreas Kienzle, Thierhaupten, DE;
Jens Rosenlöcher, Augsburg, DE;
Rainer Zimmerman-chopin, Ellgau, DE;
Moritz Bauer, Augsburg, DE;
Martin Christ, Wehringen, DE;
Udo Gruber, Neusaess, DE;
Andreas Kienzle, Thierhaupten, DE;
Jens Rosenlöcher, Augsburg, DE;
Rainer Zimmerman-Chopin, Ellgau, DE;
SGL Carbon AG, , DE;
Abstract
Process for protecting fiber-reinforced, carbon-containing composites whose matrix comprises, at least in the outer layer, silicon carbide (SiC) and also silicon (Si) and/or silicon alloys against oxidation, which comprises the steps a) impregnation of the composite with an aqueous, phosphate-containing solution, b) drying, c) heat treatment at a temperature which is at least sufficient to convert the dried solution into insoluble compounds which are suitable for forming a self-healing glass, wherein the composite is treated oxidatively to form silicon oxide (SiO) either prior to step a), between steps a) and b) or during or after step b) and/or c).