Quantifying thermal barrier coating delamination through luminescence modeling

Fouliard, Quentin; Ghosh, Ranajay; Raghavan, Seetha

doi:10.1016/j.surfcoat.2020.126153

Title: Quantifying thermal barrier coating delamination through luminescence modeling

Abstract

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 operating temperatures and therefore enhancing the performance of the engines. However, this benefit is only possible if the integrity of the TBC under aggressive thermo-mechanical environments is ensured. Delamination is a common but hard to detect failure mode. We present, in this work, supported by experimentation, the implementation of a modeling approach applying the Kubelka-Munk theory to provide numerical quantification of luminescence contrast and intensity due to top coat delamination in TBCs. The method relies on the drastic change in reflectivity when a delamination forms, exploiting it for high-contrast luminescence mapping. Two distinct TBC configurations containing an erbium-doped yttria-stabilized zirconia (YSZ:Er³⁺) layer for delamination sensing were used to validate this model. A delamination zone induced by Rockwell indentation was successfully tracked by measuring an increase of the intensity of the erbium emission line at 562 nm. Luminescence-based methods for delamination detection can provide a revolutionary non-invasive technique, with potential for both off-line and on-line engine monitoring.

Authors:

Fouliard, Quentin ^[1]; Ghosh, Ranajay ^[1];

^[1]

Univ. of Central Florida, Orlando, FL (United States). Mechanical and Aerospace Engineering

Publication Date:: Tue Jul 07 00:00:00 EDT 2020

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

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1849247

Alternate Identifier(s):: OSTI ID: 1638414

Grant/Contract Number:: FE0031282

Resource Type:: Accepted Manuscript

Journal Name:: Surface and Coatings Technology

Additional Journal Information:: Journal Volume: 399; Journal Issue: C; Journal ID: ISSN 0257-8972

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Materials Science; Physics; Delamination; Thermal barrier coatings; Erbium-doped yttria-stabilized zirconia; Kubelka-Munk model; Luminescence imaging

Citation Formats


                    Fouliard, Quentin, Ghosh, Ranajay, and Raghavan, Seetha. Quantifying thermal barrier coating delamination through luminescence modeling.  United States: N. p., 2020. 
Web.  doi:10.1016/j.surfcoat.2020.126153.

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                    Fouliard, Quentin, Ghosh, Ranajay, & Raghavan, Seetha. Quantifying thermal barrier coating delamination through luminescence modeling.  United States.  https://doi.org/10.1016/j.surfcoat.2020.126153

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                    Fouliard, Quentin, Ghosh, Ranajay, and Raghavan, Seetha. Tue .  
"Quantifying thermal barrier coating delamination through luminescence modeling".  United States.  https://doi.org/10.1016/j.surfcoat.2020.126153.  https://www.osti.gov/servlets/purl/1849247.

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@article{osti_1849247,

  title        = {Quantifying thermal barrier coating delamination through luminescence modeling},

  author       = {Fouliard, Quentin and Ghosh, Ranajay and Raghavan, Seetha},

  abstractNote = {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 operating temperatures and therefore enhancing the performance of the engines. However, this benefit is only possible if the integrity of the TBC under aggressive thermo-mechanical environments is ensured. Delamination is a common but hard to detect failure mode. We present, in this work, supported by experimentation, the implementation of a modeling approach applying the Kubelka-Munk theory to provide numerical quantification of luminescence contrast and intensity due to top coat delamination in TBCs. The method relies on the drastic change in reflectivity when a delamination forms, exploiting it for high-contrast luminescence mapping. Two distinct TBC configurations containing an erbium-doped yttria-stabilized zirconia (YSZ:Er3+) layer for delamination sensing were used to validate this model. A delamination zone induced by Rockwell indentation was successfully tracked by measuring an increase of the intensity of the erbium emission line at 562 nm. Luminescence-based methods for delamination detection can provide a revolutionary non-invasive technique, with potential for both off-line and on-line engine monitoring.},

  doi          = {10.1016/j.surfcoat.2020.126153},

  journal      = {Surface and Coatings Technology},

  number       = C,

  volume       = 399,

  place        = {United States},

  year         = {Tue Jul 07 00:00:00 EDT 2020},

  month        = {Tue Jul 07 00:00:00 EDT 2020}

}

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Title: Quantifying thermal barrier coating delamination through luminescence modeling

Abstract

Citation Formats

Delamination-Indicating Thermal Barrier Coatings Using YSZ:Eu Sublayers journal, October 2006

Feasibility of luminescent multilayer sol-gel thermal barrier coating manufacturing for future applications in through-thickness temperature gradient sensing journal, December 2014

Erosion-Indicating Thermal Barrier Coatings Using Luminescent Sublayers journal, October 2006

Piezospectroscopic Measurements Capturing the Evolution of Plasma Spray-Coating Stresses with Substrate Loads journal, January 2014

Refractive index and scattering effects on radiative behavior of a semitransparent layer journal, April 1993

Monitoring Delamination Progression in Thermal Barrier Coatings by Mid-Infrared Reflectance Imaging journal, March 2006

On the effect of temperature gradients and coating translucence on the accuracy of phosphor thermometry journal, August 2013

Molten Particulate Impact on Tailored Thermal Barrier Coatings for Gas Turbine Engine journal, October 2017

Orange-red emitting Gd2Zr2O7:Sm3+: Structure-property correlation, optical properties and defect spectroscopy journal, May 2018

Stress and structural damage sensing piezospectroscopic coatings validated with digital image correlation journal, March 2015

Review on Advanced EB-PVD Ceramic Topcoats for TBC Applications journal, October 2004

Stress-Sensing Nanomaterial Calibrated with Photostimulated Luminescence Emission journal, August 2011

Analysis of localized damage in EB-PVD/(Ni, Pt)Al thermal barrier coatings journal, May 2006

Optical and Electrical Properties of Yttria Stabilized Zirconia (YSZ) Crystals journal, April 1983

Modeling luminescence behavior for phosphor thermometry applied to doped thermal barrier coating configurations journal, January 2019

Measurements for stress sensing of composites using tailored piezospectroscopic coatings journal, May 2019

Tailored microstructure of EB-PVD 8YSZ thermal barrier coatings with low thermal conductivity and high thermal reflectivity for turbine applications journal, January 2005

A Comparative Experimental Study on Radiative Properties of EB-PVD and Air Plasma Sprayed Thermal Barrier Coatings journal, September 2015

Discrimination Between Over-Thickness and Delamination of Thermal Barrier Coatings by Apparent Thermal Effusivity Thermographic Technique journal, April 2010

Photo-Stimulated Phosphorescence for Thermal Condition Monitoring and Nondestructive Evaluation in Thermal Barrier Coatings journal, November 2009

Microstructure of ZrO2 thermal barrier coatings applied by EB-PVD journal, January 2000

Investigation of TGO stress in thermally cycled plasma-spray physical vapor deposition and electron-beam physical vapor deposition thermal barrier coatings via photoluminescence spectroscopy journal, November 2019

Comparison of different models for the determination of the absorption and scattering coefficients of thermal barrier coatings journal, February 2014

Damage mapping with a degrading elastic modulus using piezospectroscopic coatings journal, October 2015

Portable Piezospectroscopy system: non-contact in-situ stress sensing through high resolution photo-luminescent mapping journal, November 2014

Thermal Barrier Coatings Design with Increased Reflectivity and Lower Thermal Conductivity for High-Temperature Turbine Applications journal, March 2006

Effect of CMAS Infiltration on Radiative Transport Through an EB-PVD Thermal Barrier Coating journal, May 2008

Thermographic Phosphors for High Temperature Measurements: Principles, Current State of the Art and Recent Applications journal, September 2008

Characterization of Electron Beam Physical Vapor-Deposited Thermal Barrier Coatings Using Diffuse Optical Reflectance journal, May 2009

Phosphor thermometry instrumentation for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings journal, February 2020

Delamination-indicating of atmosphere-plasma-sprayed thermal barrier coating system using Eu 3+ luminescence mapping journal, July 2018

Monitoring thermal barrier coating delamination progression by upconversion luminescence imaging journal, November 2019

Piezospectroscopic evaluation and damage identification for thermal barrier coatings subjected to simulated engine environments journal, August 2017

A study of pulsed thermography for life assessment of thin EB-PVD TBCs undergoing oxidation ageing journal, December 2017

Piezospectroscopic Analysis of Interface Debonding in Thermal Barrier Coatings journal, May 2000

Infrared radiative properties of EB-PVD thermal barrier coatings journal, March 2016

Frustrated Total Internal Reflection and Application of Its Principle to Laser Cavity Design journal, January 1964

The effect of coating thickness on the thermal conductivity of EB-PVD PYSZ thermal barrier coatings journal, May 2006

Monitoring delamination of plasma-sprayed thermal barrier coatings by reflectance-enhanced luminescence journal, December 2006

Suspension and Air Plasma-Sprayed Ceramic Thermal Barrier Coatings with High Infrared Reflectance journal, February 2012

A simple demonstration of frustrated total internal reflection journal, August 2008

Transparent, luminescent terbium doped zirconia: development of optical-structural ceramics with integrated temperature measurement functionalities journal, January 2013

Quality evaluation for air plasma spray thermal barrier coatings with pulsed thermography journal, August 2011

Delamination-Indicating Thermal Barrier Coatings Using YSZ:Eu Sublayers
journal, October 2006

Feasibility of luminescent multilayer sol-gel thermal barrier coating manufacturing for future applications in through-thickness temperature gradient sensing
journal, December 2014

Erosion-Indicating Thermal Barrier Coatings Using Luminescent Sublayers
journal, October 2006

Piezospectroscopic Measurements Capturing the Evolution of Plasma Spray-Coating Stresses with Substrate Loads
journal, January 2014

Refractive index and scattering effects on radiative behavior of a semitransparent layer
journal, April 1993

Monitoring Delamination Progression in Thermal Barrier Coatings by Mid-Infrared Reflectance Imaging
journal, March 2006

On the effect of temperature gradients and coating translucence on the accuracy of phosphor thermometry
journal, August 2013

Molten Particulate Impact on Tailored Thermal Barrier Coatings for Gas Turbine Engine
journal, October 2017

Orange-red emitting Gd2Zr2O7:Sm3+: Structure-property correlation, optical properties and defect spectroscopy
journal, May 2018

Stress and structural damage sensing piezospectroscopic coatings validated with digital image correlation
journal, March 2015

Review on Advanced EB-PVD Ceramic Topcoats for TBC Applications
journal, October 2004

Stress-Sensing Nanomaterial Calibrated with Photostimulated Luminescence Emission
journal, August 2011

Analysis of localized damage in EB-PVD/(Ni, Pt)Al thermal barrier coatings
journal, May 2006

Optical and Electrical Properties of Yttria Stabilized Zirconia (YSZ) Crystals
journal, April 1983

Modeling luminescence behavior for phosphor thermometry applied to doped thermal barrier coating configurations
journal, January 2019

Measurements for stress sensing of composites using tailored piezospectroscopic coatings
journal, May 2019

Tailored microstructure of EB-PVD 8YSZ thermal barrier coatings with low thermal conductivity and high thermal reflectivity for turbine applications
journal, January 2005

A Comparative Experimental Study on Radiative Properties of EB-PVD and Air Plasma Sprayed Thermal Barrier Coatings
journal, September 2015

Discrimination Between Over-Thickness and Delamination of Thermal Barrier Coatings by Apparent Thermal Effusivity Thermographic Technique
journal, April 2010

Photo-Stimulated Phosphorescence for Thermal Condition Monitoring and Nondestructive Evaluation in Thermal Barrier Coatings
journal, November 2009

Microstructure of ZrO2 thermal barrier coatings applied by EB-PVD
journal, January 2000

Investigation of TGO stress in thermally cycled plasma-spray physical vapor deposition and electron-beam physical vapor deposition thermal barrier coatings via photoluminescence spectroscopy
journal, November 2019

Comparison of different models for the determination of the absorption and scattering coefficients of thermal barrier coatings
journal, February 2014

Damage mapping with a degrading elastic modulus using piezospectroscopic coatings
journal, October 2015

Portable Piezospectroscopy system: non-contact in-situ stress sensing through high resolution photo-luminescent mapping
journal, November 2014

Thermal Barrier Coatings Design with Increased Reflectivity and Lower Thermal Conductivity for High-Temperature Turbine Applications
journal, March 2006

Effect of CMAS Infiltration on Radiative Transport Through an EB-PVD Thermal Barrier Coating
journal, May 2008

Thermographic Phosphors for High Temperature Measurements: Principles, Current State of the Art and Recent Applications
journal, September 2008

Characterization of Electron Beam Physical Vapor-Deposited Thermal Barrier Coatings Using Diffuse Optical Reflectance
journal, May 2009

Phosphor thermometry instrumentation for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings
journal, February 2020

Delamination-indicating of atmosphere-plasma-sprayed thermal barrier coating system using Eu 3+ luminescence mapping
journal, July 2018

Monitoring thermal barrier coating delamination progression by upconversion luminescence imaging
journal, November 2019

Piezospectroscopic evaluation and damage identification for thermal barrier coatings subjected to simulated engine environments
journal, August 2017

A study of pulsed thermography for life assessment of thin EB-PVD TBCs undergoing oxidation ageing
journal, December 2017

Piezospectroscopic Analysis of Interface Debonding in Thermal Barrier Coatings
journal, May 2000

Infrared radiative properties of EB-PVD thermal barrier coatings
journal, March 2016

Frustrated Total Internal Reflection and Application of Its Principle to Laser Cavity Design
journal, January 1964

The effect of coating thickness on the thermal conductivity of EB-PVD PYSZ thermal barrier coatings
journal, May 2006

Monitoring delamination of plasma-sprayed thermal barrier coatings by reflectance-enhanced luminescence
journal, December 2006

Suspension and Air Plasma-Sprayed Ceramic Thermal Barrier Coatings with High Infrared Reflectance
journal, February 2012

A simple demonstration of frustrated total internal reflection
journal, August 2008

Transparent, luminescent terbium doped zirconia: development of optical-structural ceramics with integrated temperature measurement functionalities
journal, January 2013

Quality evaluation for air plasma spray thermal barrier coatings with pulsed thermography
journal, August 2011