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Title: Thermal barrier coating

Patent ·
OSTI ID:873735
 [1];  [2];  [3]
  1. Gibsonia, PA
  2. Orlando, FL
  3. Oviedo, FL
+ Show Author Affiliations

A thermal barrier coating for hot gas path components of a combustion turbine based on a zirconia-scandia system. A layer of zirconium scandate having the hexagonal Zr.sub.3 Sc.sub.4 O.sub.12 structure is formed directly on a superalloy substrate or on a bond coat formed on the substrate.

Research Organization:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
DOE Contract Number:
FC21-95MC32267
Assignee:
Siemens Westinghouse Power Corporation (Orlando, FL)
Patent Number(s):
US 6231998
OSTI ID:
873735
Country of Publication:
United States
Language:
English

References (3)

Scandia-stabilized zirconia for resistance to molten vanadate-sulfate corrosion journal December 1989
Crystal structures of some fluorite-related M7O12 compounds journal October 1976
Mixed oxides of the type M O 2 (fluorite)– M 2 O 3 . III. Crystal structures of the intermediate phases Zr 5 Sc 2 O 13 and Zr 3 Sc 4 O 12 journal September 1968

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Related Subjects

thermal
barrier
coating
hot
gas
path
components
combustion
turbine
based
zirconia-scandia
layer
zirconium
scandate
hexagonal
zr
12
structure
formed
directly
superalloy
substrate
bond
coat
bond coat
formed directly
combustion turbine
thermal barrier
hot gas
barrier coating
alloy substrate
gas path
coat formed
superalloy substrate
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