Thermal barrier coating resistant to sintering

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873615

Subramanian, Ramesh ^[1]; Sabol, Stephen M ^[1]

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1. Orlando, FL

A device (10) having a ceramic thermal barrier coating layer (16) characterized by a microstructure having gaps (18) with a sintering inhibiting material (22) disposed on the columns (20) within the gaps (18). The sintering resistant material (22) is stable over the range of operating temperatures of the device (10) and is not soluble with the underlying ceramic layer (16). For a YSZ ceramic layer (16) the sintering resistant layer (22) may preferably be aluminum oxide or yttrium aluminum oxide, deposited as a continuous layer or as nodules.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC05-95OR22242
• Assignee: Siemens Westinghouse Power Corporation (Orlando, FL)
• Patent Number(s): US 6203927
• OSTI ID: 873615
• Country of Publication: United States
• Language: English

Related Subjects

thermal
barrier
coating
resistant
sintering
device
10
ceramic
layer
16
characterized
microstructure
gaps
18
inhibiting
material
22
disposed
columns
20
stable
range
operating
temperatures
soluble
underlying
ysz
preferably
aluminum
oxide
yttrium
deposited
continuous
nodules
coating layer
resistant material
thermal barrier
aluminum oxide
operating temperature
barrier coating
operating temperatures
continuous layer
ceramic layer
ceramic thermal
yttrium aluminum
resistant layer
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