Title: Rare-earth doped thermal barrier coating bond coat for thermally grown oxide luminescence sensing

Abstract

A thermal barrier coated component, such as a turbine blade formed from a superalloy substrate, includes a thermal barrier coating applied onto the substrate. A metallic bond coat layer is on the substrate and includes rare-earth luminescent dopants. A ceramic top coat layer is on the bond coat layer. A temperature sensing thermally grown oxide (TGO) layer is formed at the interface of the bond coat layer and ceramic top coat layer. The temperature sensing TGO layer includes grown rare-earth luminescent ions migrated from the metallic bond coat layer in an amount sufficient to enable luminescence sensing of the TGO layer for real-time phosphor thermometry temperature measurements at the TGO layer.

Inventors:

Fouliard, Quentin; Ghosh, Ranajay; Raghavan, Seetha

Issue Date:

2022-05-31

Research Org.:

Univ. of Central Florida, Orlando, FL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1892987

Patent Number(s):

11346006

Application Number:

17/034,065

Assignee:

University of Florida Research Foundation, Inc. (Orlando, FL)

Patent Classifications (CPCs):

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

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C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K11/7783 - {containing two or more rare earth metals one of which being europium}

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C28/321 - {with at least one metal alloy layer}
C23C28/3215 - {at least one MCrAlX layer}
C23C28/345 - {with at least one oxide layer}
C23C28/3455 - {with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F01D5/288 - {Protective coatings for blades}

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

F05D2230/90 - Coating
F05D2300/15 - Rare earth metals, i.e. Sc, Y, lanthanides
F05D2300/2118 - Zirconium oxides

G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE

G01K11/20 - using thermoluminescent materials
G01K13/08 - in rotary movement

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DOE Contract Number:  

FE0031282

Resource Type:

Patent

Resource Relation:

Patent File Date: 09/28/2020

Country of Publication:

United States

Language:

English