公开(公告)号：US11346006B2

公开(公告)日：2022-05-31

申请号：US17034065

申请日：2020-09-28

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Quentin Fouliard ,  Ranajay Ghosh ,  Seetha Raghavan

IPC: C23C28/00 ,  G01K11/20 ,  C09K11/77

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.

公开(公告)号：US20210180191A1

公开(公告)日：2021-06-17

申请号：US17034065

申请日：2020-09-28

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Quentin FOULIARD ,  Ranajay Ghosh ,  Seetha Raghavan

IPC: C23C28/00 ,  C09K11/77 ,  G01K11/20

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.

公开(公告)号：US20230175139A1

公开(公告)日：2023-06-08

申请号：US17034098

申请日：2020-09-28

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Quentin Fouliard ,  Ranajay Ghosh ,  Seetha Raghavan

IPC: G01K11/12 ,  C09K11/77 ,  C09K11/02 ,  C04B35/48

CPC classification number: G01K11/12 ,  C09K11/7787 ,  C09K11/02 ,  C04B35/48 ,  C04B2235/3246 ,  C04B2235/3224

Abstract: A phosphor thermometry device includes a laser that generates a laser pulse onto a thermal barrier coating (TBC) applied onto a substrate. A metallic bond coat layer is on the substrate. A ceramic top coat layer is on the bond coat layer and includes an undoped layer and a doped sensing layer having co-doped first and second rare-earth luminescent dopants that emit respective first and second different emission wavelengths upon excitation by the laser pulse. A detector receives reflected, convoluted luminescence signals from the TBC. First and second photomultiplier devices detect respective first and second different emission wavelengths of the convoluted luminescence signals. A controller receives and processes signals generated from respective first and second photomultiplier devices and determines luminescence lifetime decay and intensity variations for each of the respective first and second rare-earth luminescent dopants for temperature monitoring of the TBC.

公开(公告)号：US11718917B2

公开(公告)日：2023-08-08

申请号：US17034098

申请日：2020-09-28

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Quentin Fouliard ,  Ranajay Ghosh ,  Seetha Raghavan

IPC: C23C28/04 ,  C04B41/90 ,  C23C28/00 ,  F01D5/28 ,  C23C4/02 ,  G01K11/20 ,  C23C4/11 ,  C23C14/08 ,  C23C30/00 ,  G01K13/00

CPC classification number: C23C28/042 ,  C04B41/90 ,  C23C4/02 ,  C23C4/11 ,  C23C14/083 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/288 ,  G01K11/20 ,  G01K13/00 ,  F05D2300/611

Abstract: A phosphor thermometry device includes a laser that generates a laser pulse onto a thermal barrier coating (TBC) applied onto a substrate. A metallic bond coat layer is on the substrate. A ceramic top coat layer is on the bond coat layer and includes an undoped layer and a doped sensing layer having co-doped first and second rare-earth luminescent dopants that emit respective first and second different emission wavelengths upon excitation by the laser pulse. A detector receives reflected, convoluted luminescence signals from the TBC. First and second photomultiplier devices detect respective first and second different emission wavelengths of the convoluted luminescence signals. A controller receives and processes signals generated from respective first and second photomultiplier devices and determines luminescence lifetime decay and intensity variations for each of the respective first and second rare-earth luminescent dopants for temperature monitoring of the TBC.

公开(公告)号：US11680323B2

公开(公告)日：2023-06-20

申请号：US17649929

申请日：2022-02-04

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Quentin Fouliard ,  Ranajay Ghosh ,  Seetha Raghavan

IPC: C23C28/00 ,  G01K11/20 ,  C09K11/77

CPC classification number: C23C28/3455 ,  C09K11/7783 ,  C23C28/321 ,  G01K11/20

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.