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:
Oct. 28, 1980
Filed:
Aug. 03, 1978
Applicant:
Inventors:
Wolfgang Betz, Munich, DE;
Axel Rossmann, Karlsfeld, DE;
Assignee:
Motoren- und Turbinen-Union Munchen GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ; B05D / ;
U.S. Cl.
CPC ...
4272554 ; 427255 ; 427294 ; 427344 ;
Abstract
For the encapsulation of a molded ceramic member for high-temperature isostatic pressing, the molded member, which preferably is of silicon ceramic, is covered with a dense surface coating of an Si melt. Thereafter, the coating is exposed to an N.sub.2 atmosphere at a temperature of within about 800.degree. to 1400.degree. C. for so long until the Si coating is converted into a Si.sub.3 N.sub.4 coating.