Strain-tolerant ceramic coated seal

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869526

Schienle, James L ^[1]; Strangman, Thomas E ^[1]

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1. Phoenix, AZ

A metallic regenerator seal is provided having multi-layer coating comprising a NiCrAlY bond layer, a yttria stabilized zirconia (YSZ) intermediate layer, and a ceramic high temperature solid lubricant surface layer comprising zinc oxide, calcium fluoride, and tin oxide. An array of discontinuous grooves is laser machined into the outer surface of the solid lubricant surface layer making the coating strain tolerant.

• DOE Contract Number: DEN3-335
• Assignee: AlliedSignal Inc. (Morris Township, Morris County, NJ)
• Patent Number(s): US 5352540
• OSTI ID: 869526
• Country of Publication: United States
• Language: English

Related Subjects

strain-tolerant
ceramic
coated
seal
metallic
regenerator
provided
multi-layer
coating
comprising
nicraly
bond
layer
yttria
stabilized
zirconia
ysz
intermediate
temperature
solid
lubricant
surface
zinc
oxide
calcium
fluoride
array
discontinuous
grooves
laser
machined
outer
strain
tolerant
yttria stabilized
solid lubricant
coating comprising
strain tolerant
regenerator seal
layer comprising
temperature solid
zinc oxide
outer surface
surface layer
intermediate layer
stabilized zirconia
calcium fluoride
comprising zinc
multi-layer coating
nicraly bond
metallic regenerator
lubricant surface
bond layer
/428/415/