Method for forming fibrous silicon carbide insulating material

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865241

Wei, George C ^[1]

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1. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4481179
• OSTI ID: 865241
• Country of Publication: United States
• Language: English

Related Subjects

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/