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Title: Articles for high temperature service and methods for their manufacture

Abstract

An article for use in aggressive environments is presented. In one embodiment, the article comprises a substrate and a self-sealing and substantially hermetic sealing layer comprising an alkaline-earth aluminosilicate disposed over the bondcoat. The substrate may be any high-temperature material, including, for instance, silicon-bearing ceramics and ceramic matrix composites. A method for making such articles is also presented. The method comprises providing a substrate; disposing a self-sealing alkaline-earth aluminosilicate layer over the substrate; and heating the sealing layer to a sealing temperature at which at least a portion of the sealing layer will flow.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1257248
Patent Number(s):
9,365,725
Application Number:
11/941,415
Assignee:
General Electric Company (Niskayuna, NY)
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Nov 16
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sarrafi-Nour, Reza, Meschter, Peter Joel, Johnson, Curtis Alan, Luthra, Krishan Lal, and Rosenzweig, Larry Steven. Articles for high temperature service and methods for their manufacture. United States: N. p., 2016. Web.
Sarrafi-Nour, Reza, Meschter, Peter Joel, Johnson, Curtis Alan, Luthra, Krishan Lal, & Rosenzweig, Larry Steven. Articles for high temperature service and methods for their manufacture. United States.
Sarrafi-Nour, Reza, Meschter, Peter Joel, Johnson, Curtis Alan, Luthra, Krishan Lal, and Rosenzweig, Larry Steven. Tue . "Articles for high temperature service and methods for their manufacture". United States. https://www.osti.gov/servlets/purl/1257248.
@article{osti_1257248,
title = {Articles for high temperature service and methods for their manufacture},
author = {Sarrafi-Nour, Reza and Meschter, Peter Joel and Johnson, Curtis Alan and Luthra, Krishan Lal and Rosenzweig, Larry Steven},
abstractNote = {An article for use in aggressive environments is presented. In one embodiment, the article comprises a substrate and a self-sealing and substantially hermetic sealing layer comprising an alkaline-earth aluminosilicate disposed over the bondcoat. The substrate may be any high-temperature material, including, for instance, silicon-bearing ceramics and ceramic matrix composites. A method for making such articles is also presented. The method comprises providing a substrate; disposing a self-sealing alkaline-earth aluminosilicate layer over the substrate; and heating the sealing layer to a sealing temperature at which at least a portion of the sealing layer will flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {6}
}

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