Method for smoothing the surface of a protective coating

Patent · Mon Jan 01 04:00:00 EST 2001

OSTI ID:874015

Sangeeta, D ^[1]; Johnson, Curtis Alan ^[2]; Nelson, Warren Arthur ^[3]

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1. Cincinnati, OH
2. Schenectady, NY
3. Clifton Park, NY

A method for smoothing the surface of a ceramic-based protective coating which exhibits roughness is disclosed. The method includes the steps of applying a ceramic-based slurry or gel coating to the protective coating surface; heating the slurry/gel coating to remove volatile material; and then further heating the slurry/gel coating to cure the coating and bond it to the underlying protective coating. The slurry/gel coating is often based on yttria-stabilized zirconia, and precursors of an oxide matrix. Related articles of manufacture are also described.

• Research Organization: General Electric Company (Schenectady, NY)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6294261
• OSTI ID: 874015
• Country of Publication: United States
• Language: English

Related Subjects

/428/416/
applying
articles
based
bond
ceramic-based
coating
coating surface
cure
described
disclosed
exhibits
heating
manufacture
material
matrix
method
oxide
oxide matrix
precursors
protective
protective coating
related
related articles
remove
remove volatile
roughness
slurry
smoothing
stabilized zirconia
steps
surface
underlying
volatile
volatile material
yttria-stabilized
yttria-stabilized zirconia
zirconia