Optimization of the NiCrAl-Y/ZrO-Y2O3 thermal barrier system
Conference
·
OSTI ID:5791036
The effects of bond and thermal barrier coating compositions, thicknesses, and densities on air plasma spray deposited Ni-Cr-Al-Y/ZrO2-Y2O3 life were evaluated in cyclic furnace oxidation tests at temperatures from 1110 to 1220 C. An empirical relation was developed to give life as a function of the above parameters. The thermal barrier system tested which had the longest life consisted of Ni-35.0 wt% Cr-5.9 wt% Al-0.95 wt% Y bond coating and ZrO2-6.1 wt% Y2O3 thermal barrier coating.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 5791036
- Report Number(s):
- N-85-15878; NASA-TM-86905; E-2394; CONF-850536-2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALUMINIUM
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHROMIUM
COATINGS
DEPOSITION
DIMENSIONS
ELEMENTS
FURNACES
IMPURITIES
METALS
NICKEL
OPTIMIZATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PLASMA ARC SPRAYING
RARE EARTHS
SPRAY COATING
SURFACE COATING
THICKNESS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTERBIUM
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALUMINIUM
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHROMIUM
COATINGS
DEPOSITION
DIMENSIONS
ELEMENTS
FURNACES
IMPURITIES
METALS
NICKEL
OPTIMIZATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PLASMA ARC SPRAYING
RARE EARTHS
SPRAY COATING
SURFACE COATING
THICKNESS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTERBIUM
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES