Nondestructive evaluation of thermal barrier coatings by Cr3+ luminescence lifetime measurement

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Nondestructive evaluation of thermal barrier coating using Cr3+ luminescence lifetime measurement F. LEPOUTRE, N. TERRIEN, N. RICHARD, A. DEOM Structures and Damage Mechanics Department Experimental Methods and Health Monitoring Unit ONERA CHATILLON Franç

  • blade coated

  • barrier systems

  • coating

  • thermal bond

  • turbine

  • barrier coating using

  • luminescence peaks

  • damaged blade


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Nondestructive evaluation of thermal barrier coating using Cr3+luminescence lifetime measurementF. LEPOUTRE, N. TERRIEN, N. RICHARD, A. DEOMESxtpreurcitmureenst aal nMd eDthaomdas gaen dM eHcehaaltnhi cMs oDneitpoarirntgm eUnntitONERA CHATILLONNicolas.Terrien@onera.frFrançois.Lepoutre@onera.fr
Outline1) Study context2) Conventional piezospectroscopy3) The monitoring technique developed at ONERA4) Damage evaluation in TBC specimens5) Damage evaluation in TBC turbine blades6) Conclusions and future works