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Title: Process for strengthening silicon based ceramics

Abstract

A process for strengthening silicon based ceramic monolithic materials and omposite materials that contain silicon based ceramic reinforcing phases that requires that the ceramic be exposed to a wet hydrogen atmosphere at about 1400.degree. C. The process results in a dense, tightly adherent silicon containing oxide layer that heals, blunts , or otherwise negates the detrimental effect of strength limiting flaws on the surface of the ceramic body.

Inventors:
 [1];  [2]
  1. (Oak Ridge, TN)
  2. (Knoxville, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
875156
Patent Number(s):
H1166
Assignee:
United States of America as represented by Department of Energy (Washington, DC) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; strengthening; silicon; based; ceramics; ceramic; monolithic; materials; omposite; contain; reinforcing; phases; requires; exposed; wet; hydrogen; atmosphere; 1400; degree; results; dense; tightly; adherent; containing; oxide; layer; heals; blunts; otherwise; negates; detrimental; effect; strength; limiting; flaws; surface; based ceramics; process results; silicon based; oxide layer; hydrogen atmosphere; silicon containing; based ceramic; strengthening silicon; wet hydrogen; omposite materials; /427/

Citation Formats

Kim, Hyoun-Ee, and Moorhead, A. J. Process for strengthening silicon based ceramics. United States: N. p., 1993. Web.
Kim, Hyoun-Ee, & Moorhead, A. J. Process for strengthening silicon based ceramics. United States.
Kim, Hyoun-Ee, and Moorhead, A. J. Fri . "Process for strengthening silicon based ceramics". United States. https://www.osti.gov/servlets/purl/875156.
@article{osti_875156,
title = {Process for strengthening silicon based ceramics},
author = {Kim, Hyoun-Ee and Moorhead, A. J.},
abstractNote = {A process for strengthening silicon based ceramic monolithic materials and omposite materials that contain silicon based ceramic reinforcing phases that requires that the ceramic be exposed to a wet hydrogen atmosphere at about 1400.degree. C. The process results in a dense, tightly adherent silicon containing oxide layer that heals, blunts , or otherwise negates the detrimental effect of strength limiting flaws on the surface of the ceramic body.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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