Method for forming fibrous silicon carbide insulating material
Abstract
A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.
- Inventors:
-
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 865241
- Patent Number(s):
- 4481179
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- W-7405-ENG-26
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; forming; fibrous; silicon; carbide; insulating; material; whereby; carbide-bonded; sic; fiber; composites; prepared; carbon-bonded; disclosed; composite; treated; gaseous; monoxide; generated; reaction; mixture; colloidal; silica; carbon; black; elevated; temperature; argon; atmosphere; bond; chemically; converted; resulting; fabricating; dense; high-strength; high-toughness; thermal; materials; oxidizing; environments; argon atmosphere; silicon monoxide; insulating material; elevated temperature; silicon carbide; composite material; fiber composite; thermal insulating; carbon black; fiber composites; oxidizing environments; carbon bond; sic fiber; composite mat; method whereby; oxidizing environment; /423/501/
Citation Formats
Wei, George C. Method for forming fibrous silicon carbide insulating material. United States: N. p., 1984.
Web.
Wei, George C. Method for forming fibrous silicon carbide insulating material. United States.
Wei, George C. Sun .
"Method for forming fibrous silicon carbide insulating material". United States. https://www.osti.gov/servlets/purl/865241.
@article{osti_865241,
title = {Method for forming fibrous silicon carbide insulating material},
author = {Wei, George C},
abstractNote = {A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}
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