Method of fabricating silicon carbide coatings on graphite surfaces

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869406

Herman, Herbert ^[1]; Burchell, Timothy D ^[2]

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1. Port Jefferson, NY
2. Oak Ridge, TN

The vacuum plasma spray process produces well-bonded, dense, stress-free coatings for a variety of materials on a wide range of substrates. The process is used in many industries to provide for the excellent wear, corrosion resistance, and high temperature behavior of the fabricated coatings. In this application, silicon metal is deposited on graphite. This invention discloses the optimum processing parameters for as-sprayed coating qualities. The method also discloses the effect of thermal cycling on silicon samples in an inert helium atmosphere at about 1600.degree.C. which transforms the coating to silicon carbide.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: United States as represented by United States Department of (Washington, DC)
• Patent Number(s): US 5332601
• OSTI ID: 869406
• Country of Publication: United States
• Language: English

Related Subjects

method
fabricating
silicon
carbide
coatings
graphite
surfaces
vacuum
plasma
spray
process
produces
well-bonded
dense
stress-free
variety
materials
wide
range
substrates
industries
provide
excellent
wear
corrosion
resistance
temperature
behavior
fabricated
application
metal
deposited
discloses
optimum
processing
parameters
as-sprayed
coating
qualities
effect
thermal
cycling
samples
inert
helium
atmosphere
1600
degree
transforms
corrosion resistance
plasma spray
thermal cycling
silicon carbide
wide range
process produces
silicon metal
coating qualities
spray process
fabricating silicon
inert helium
graphite surface
/427/