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Lab Member Quentin Fouliard Presented at the 2021 ASME Turbo Expo

  • June 16, 2021
  • Seetha Raghavan
  • · News

Our postdoctoral researcher Dr. Quentin Fouliard presented at the Turbo Expo 2021: Turbomachinery Technical Conference & Exposition, an event hosted online by the American Society of Mechanical Engineers (ASME) between June 7-11, 2021. During the conference, he presented his paper titled “Synchrotron X-Ray Diffraction To Quantify In-Situ Strain On Rare-Earth Doped Yttria-Stabilized Zirconia Thermal Barrier Coatings” in the symposium on Thermal and Environmental Barrier Coatings. The paper focuses on characterizing the effects of the addition of rare-earth dopants on thermal barrier coating thermomechanical response using synchrotron X-ray diffraction. Dopant addition is very attractive for coating innovation as is allows for online temperature measurements and spectral characterization for coating structural evaluation and delamination monitoring. Monitoring capabilities have large potential to improve engine reliability and efficiency. It was found that 1.5 wt.% addition of Dy/Er dopants in yttria-stabilized zirconia has negligible impact on the coating’s response in engine operation conditions. The findings are therefore promising and encouraging to pursue the study on luminescent coatings as they seem to indicate safety and suitability of sensor coatings.

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