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Title: Method of producing silicon carbide articles

Abstract

A method of producing articles comprising reaction-bonded silicon carbide (SiC) and graphite (and/or carbon) is given. The process converts the graphite (and/or carbon) in situ to SiC, thus providing the capability of economically obtaining articles made up wholly or partially of SiC having any size and shape in which graphite (and/or carbon) can be found or made. When the produced articles are made of an inner graphite (and/or carbon) substrate to which SiC is reaction bonded, these articles distinguish SiC-coated graphite articles found in the prior art by the feature of a strong bond having a gradual (as opposed to a sharply defined) interface which extends over a distance of mils. A method for forming SiC whisker-reinforced ceramic matrices is also given. The whisker-reinforced articles comprise SiC whiskers which substantially retain their structural integrity.

Inventors:
 [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
865432
Patent Number(s):
4513030
Assignee:
United States of America as represented by United States (Washington, DC) LANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; silicon; carbide; articles; comprising; reaction-bonded; sic; graphite; carbon; process; converts; situ; providing; capability; economically; obtaining; wholly; partially; size; shape; found; produced; inner; substrate; reaction; bonded; distinguish; sic-coated; prior; feature; strong; bond; gradual; opposed; sharply; defined; interface; extends; distance; mils; forming; whisker-reinforced; ceramic; matrices; comprise; whiskers; substantially; retain; structural; integrity; strong bond; silicon carbide; structural integrity; producing silicon; sic whiskers; carbide articles; sic whisker-reinforced; reinforced ceramic; graphite articles; whisker-reinforced ceramic; sharply defined; coated graphite; substantially retain; producing articles; articles comprising; bonded silicon; /427/501/

Citation Formats

Milewski, John V. Method of producing silicon carbide articles. United States: N. p., 1985. Web.
Milewski, John V. Method of producing silicon carbide articles. United States.
Milewski, John V. Tue . "Method of producing silicon carbide articles". United States. https://www.osti.gov/servlets/purl/865432.
@article{osti_865432,
title = {Method of producing silicon carbide articles},
author = {Milewski, John V.},
abstractNote = {A method of producing articles comprising reaction-bonded silicon carbide (SiC) and graphite (and/or carbon) is given. The process converts the graphite (and/or carbon) in situ to SiC, thus providing the capability of economically obtaining articles made up wholly or partially of SiC having any size and shape in which graphite (and/or carbon) can be found or made. When the produced articles are made of an inner graphite (and/or carbon) substrate to which SiC is reaction bonded, these articles distinguish SiC-coated graphite articles found in the prior art by the feature of a strong bond having a gradual (as opposed to a sharply defined) interface which extends over a distance of mils. A method for forming SiC whisker-reinforced ceramic matrices is also given. The whisker-reinforced articles comprise SiC whiskers which substantially retain their structural integrity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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