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:
May. 21, 2019
Filed:
Sep. 12, 2014
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Michael G. McCaffrey, Windsor, CT (US);
Douglas M. Berczik, Manchester, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/573 (2006.01); C04B 38/06 (2006.01); C04B 35/80 (2006.01); B05D 3/00 (2006.01); C04B 41/89 (2006.01); C04B 35/626 (2006.01);
U.S. Cl.
CPC ...
C04B 38/0615 (2013.01); B05D 3/007 (2013.01); C04B 35/573 (2013.01); C04B 35/6267 (2013.01); C04B 35/806 (2013.01); C04B 41/89 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/3873 (2013.01); C04B 2235/428 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/5252 (2013.01); C04B 2235/5256 (2013.01); C04B 2235/614 (2013.01); C04B 2235/616 (2013.01);
Abstract
A method of densifying a CMC article includes the steps of pyrolyzing a CMC article until a desired initial porosity is achieved, coating CMC pores within the CMC article with carbon, pyrolyzing the carbon to form carbon pores, coating the carbon pores with silicon, and heat treating the CMC article to create a silicon carbide filled pore integrated with silicon carbide of the CMC article to densify the CMC article.