Method for smoothing the surface of a protective coating

Patent · Mon Jan 01 00:00:00 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 Co., Schenectady, NY (United States)
• 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

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