Detection of corrosion under insulation on aerospace structures via pulsed eddy current thermography

J Hernandez, Q Fouliard, K Vo, S Raghavan - Aerospace Science and …, 2022 - Elsevier
Corrosion degradation mechanics play a significant role in the safe operability and
availability of aircraft components. To defend against corrosion, coating systems and …

Near infrared optical thermometry in fluorophosphate glasses doped with Nd3+ and Nd3+/Yb3+

WJ Faria, TS Gonçalves, ASS de Camargo - Journal of Alloys and …, 2021 - Elsevier
Optical thermometry via luminescence intensity ratio (LIR) is often explored in the visible
spectrum range of trivalent rare earth doped materials but much less so in the near infrared …

Luminescence of Triple Perovskite Ba3MgTa2O9:Dy3+ Up to 1100 °C

MR Imer, A Afugu, ZF Liu… - The Journal of Physical …, 2024 - ACS Publications
The luminescence response of Dy3+-doped Ba3MgTa2O9 (BMTO: Dy) between room
temperature and 1100° C was studied in the context of high-temperature thermosensitive …

[HTML][HTML] Spatially and temporally resolved laser/optical diagnostics of combustion processes: From fundamentals to practical applications

M Aldén - Proceedings of the combustion institute, 2023 - Elsevier
Laser diagnostic techniques have for more than five decades been used for gaining a
deepened understanding of various combustion processes. The main reason for this is the …

Stresses within rare-earth doped yttria-stabilized zirconia thermal barrier coatings from in-situ synchrotron X-ray diffraction at high temperatures

Q Fouliard, H Ebrahimi, J Hernandez, K Vo… - Surface and Coatings …, 2022 - Elsevier
There is a growing interest for smart coatings that can be integrated into turbine engines for
in-situ temperature measurements or health monitoring. The addition of rare-earth dopants …

YAG: Dy co-doped with Tb for lifetime-based phosphor thermometry from room temperature to 1600° C

M Li, X Zhao, Y Liu, D Peng, W Cai, H Liu - Sensors and Actuators A …, 2024 - Elsevier
Phosphor thermometry has demonstrated significant potential for nondestructive high-
temperature measurements in gas turbines. To expand the measurement range through …

Quantifying thermal barrier coating delamination through luminescence modeling

Q Fouliard, R Ghosh, S Raghavan - Surface and Coatings Technology, 2020 - Elsevier
Thermal barrier coatings (TBCs) are widely used in the hot sections of gas turbine systems
as they are remarkably efficient in insulating the underlying superalloys, leading to higher …

Precise surface temperature measurements from 400 to 1200 K using the Pr: YAG phosphor

D Witkowski, DA Rothamer - Applied Physics B, 2021 - Springer
The thermographic phosphor Pr: YAG was investigated for lifetime-based surface
temperature measurements using 4f–4f emission from its^ 3 P _ J 3 PJ states. A thin …

Luminescence of Dy3+-Doped Y3NbO7 up to 1000° C

MR Imer, FA Rabuffetti - Journal of Luminescence, 2025 - Elsevier
The luminescence response of Dy 3+-doped Y 3 NbO 7 (YNO: Dy) was probed between
room temperature and 1000° C. Single-phase YNO: Dy was synthesized via solid-state …

Thermally grown oxide stress in PS-PVD and EB-PVD thermal barrier coatings observed at various lifetimes via synchrotron X-ray diffraction

M Northam, Q Fouliard… - Journal of …, 2023 - asmedigitalcollection.asme.org
The current standard application method for thermal barrier coatings (TBCs) on turbine
blades for jet engines is electron-beam physical vapor deposition (EB-PVD) due to its high …