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Title: Process for strengthening silicon based ceramics

Abstract

A process for strengthening silicon based ceramic monolithic materials and composite materials that contain silicon based ceramic reinforcing phases that requires that the ceramic be exposed to a wet hydrogen atmosphere at about 1400{degrees}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:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10190404
Patent Number(s):
PATENTS-US-A7665854
Application Number:
ON: DE93002020
Assignee:
Dept. of Energy
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 7 Mar 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; HARDENING; SURFACE TREATMENTS; SILICON COMPOUNDS; HYDROGEN; MOISTURE; SURFACES; LAYERS; TEMPERATURE RANGE 1000-4000 K; SILICON OXIDES; FLEXURAL STRENGTH; FRACTURE PROPERTIES; 360201; PREPARATION AND FABRICATION

Citation Formats

Kim, Hyoun-Ee, and Moorhead, A J. Process for strengthening silicon based ceramics. United States: N. p., 1991. Web.
Kim, Hyoun-Ee, & Moorhead, A J. Process for strengthening silicon based ceramics. United States.
Kim, Hyoun-Ee, and Moorhead, A J. 1991. "Process for strengthening silicon based ceramics". United States. https://www.osti.gov/servlets/purl/10190404.
@article{osti_10190404,
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 composite materials that contain silicon based ceramic reinforcing phases that requires that the ceramic be exposed to a wet hydrogen atmosphere at about 1400{degrees}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 = {},
url = {https://www.osti.gov/biblio/10190404}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 07 00:00:00 EST 1991},
month = {Thu Mar 07 00:00:00 EST 1991}
}