Publications

Johnathan Hernandez, Quentin P. Fouliard, Khanh Vo, and Seetha Raghavan. "Characterization of corrosive defects through pulsed eddy current thermography for aircraft panels" AIAA Scitech Forum. January 12, 2021.

2020:

Johnathan Hernandez, Quentin Fouliard, Caroline Anderson, Matthew Northam, Khanh Vo, Jared Clabaugh, Douglas Wolfe et al. "In-Situ XRD Characterization of Interface Strains In Multilayered Ceramic Composite Systems for Hypersonics Applications" In 23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference. 2020.

Matthew Northam, Lin Rossmann, Brooke Sarley, Maxwell Smith, Peter Kenesei, Jun-Sang Park, Jonathan Almer, Bryan Harder, Vaishak Viswanathan, Seetha Raghavan,"Comparison of thermally cycled PS-PVD and EB-PVD thermal barrier coatings' depth-resolved monoclinic phase evolution via synchrotron X-ray diffraction," AIAA Scitech Forum, Orlando, FL, January 6-10, 2020.

Zachary Stein, Ravisankar Naraparaju, Uwe Schulz, Peter Kenesei, Jun-Sang Park, Jonathan Almer, Seetha Raghavan, "Synchrotron X-Ray Diffraction Study of Phase Transformation in CMAS Ingressed EB-PVD Thermal Barrier Coatings," AIAA Scitech Forum, Orlando, FL, January 6-10, 2020.

Johnathan Hernandez, Quentin Fouliard, Khanh Vo, Seetha Raghavan,"Simulation and Experimentation of Pulsed Eddy Current Thermography for Corrosion Detection Under Insulation," AIAA Scitech Forum, Orlando, FL, January 6-10, 2020.

Quentin Fouliard, Ranajay Ghosh, and Seetha Raghavan, “Doped 8% Yttria Stabilized Zirconia for Temperature Measurements on Thermal Barrier Coatings using Phosphor Thermometry," AIAA Scitech Forum, Orlando, FL, January 6-10, 2020.

2019:

Quentin Fouliard, Bauke Heeg, Ranajay Ghosh, Seetha Raghavan, “Luminescence characterization of temperature sensitive phosphor doped Thermal Barrier Coatings” Surface Protection for Enhanced Materials Performance: Science, Technology, and Application, MS&T19, Portland, OR, October 2 2019.

Sandip Haldar, Peter Warren, Quentin Fouliard, David Moreno, Mary McCay, Jun-Sang Park, Peter Kenesei, Jonathan Almer, Ranajay Ghosh, Seetha Raghavan, “Synchrotron X-Ray Diffraction Measurements of Thermal Barrier Coating Configurations with Rare Earth Elements for Phosphor Thermometry,” ASME Turbomachinery Technical Conference and Exposition, Phoenix, AZ, June 17-21, 2019.

Matthew Northam, Lin Rossmann, Brooke Sarley, Bryan Harder, Jun-Sang Park, Peter Kenesei, Jonathan Almer, Vaishak Viswanathan, Seetha Raghavan, “Comparison of Electron-Beam Physical Vapor Deposition and Plasma-Spray Physical Vapor Deposition Thermal Barrier Coating Properties Using Synchrotron X-ray Diffraction," ASME Turbomachinery Technical Conference and Exposition, Phoenix, AZ, June 17-21, 2019.

Lin Rossmann, Matthew Northam, Brooke Sarley, Liudmila Chernova, Vaishak Viswanathan, Bryan Harder, & Seetha Raghavan, “Investigation of TGO stress in thermally cycled plasma-spray physical vapor deposition and electron-beam physical vapor deposition thermal barrier coatings via photoluminescence spectroscopy,” International Conference on Metallurgical Coatings and Thin Films, San Diego, CA, May 19-24, 2019.

Remelisa Esteves, Ryan Hoover, Khanh Vo, Sanjida A. Jahan, Sandip Haldar, Seetha Raghavan, "Application of Stress Sensing Coatings on Metal Substrates with a Sub-surface Notch," 2019 AIAA SciTech Forum, San Diego, California, 7-11 January 2019.

2018:

Quentin Fouliard, Sanjida A. Jahan, Lin Rossmann, Peter Warren, Ranajay Ghosh, Seetha Raghavan, "Configurations for Temperature Sensing of Thermal Barrier Coatings," International Conference on Phosphor Thermometry, Glasgow, UK. 25-27 July, 2018.

Remelisa Esteves, Ryan Hoover, Khanh Vo, Seetha Raghavan, "Piezospectroscopic coatings: Effects of alumina nanoparticle volume fraction on stress-sensing," Society for the Advancement of Material and Process Engineering (SAMPE), Long Beach, California, 21-25 May 2018.

Debraliz Isaac Aragones, Lin Rossmann, Estefania Bohorquez, Brooke Sarley, Owen Pryor, Seetha Raghavan, “US-Germany Collaboration in Materials for Extreme Environments: Developing an International Research Pathway Towards Creating Global Engineers for the Future,” ASEE-SE Educating the Engineer of the Future, Embry-Riddle Aeronautical University, Daytona Beach, Florida, 4-6 March 2018.

Lin Rossmann, Brooke Sarley, Johnathan Hernandez, Peter Kenesei, Jonathan Almer, Janine Wischek, Marion Bartsch, Alain Köster, Vincent Maurel, Seetha Raghavan, "Method for Conducting In Situ High Temperature DIC with Simultaneous Synchrotron Measurements under Thermomechanical Load," AIAA Science and Technology Forum and Exposition, Orlando, FL, 8-12 January 2018.

Sanjida A. Jahan, Mohamed Abdelgader, Eric Barker, Johnathan Hernandez, Ryan Hoover, Hao Pan, Yuanli Bai, Declan Carolan, Ambrose Taylor, Seetha Raghavan, "Effect of Functionalization on Mechanical Properties of Hybrid Carbon Fiber Reinforced Polymer (HCFRP) Composites Using Piezopectroscopy," 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Kissimmee, Florida, 8–12 January 2018.

Estefania Bohorquez, Brooke Sarley, Johnathan Hernandez, Ryan Hoover, Laurene Tetard, Ravisankar Naraparaju, Uwe Schulz, Seetha Raghavan, "Investigation of the Effects of CMAS-infiltration in EB-PVD 7% Yttria-Stabilized Zirconia via Raman Spectroscopy," 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Kissimmee, Florida, 8–12 January 2018.

2017:

Alex Selimov, Ryan Hoover, Quentin Fouliard, Albert Manero II, Peter Dackus, Declan Carolan, Ambrose Taylor, Seetha Raghavan, "Characterization of Hybrid Carbon Fiber Composites using Photoluminescence Spectroscopy," 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Grapevine, Texas, 9-13 January 2017.

Brooke Sarley, Albert C. Manero, Jose Cotelo, Janine Wischek, John Okasinski, Peter Kenesei, Johnathan Almer, Marion Bartsch, Seetha Raghavan., "Real-time phase evolution of Selective Laser Melted (SLM) Inconel 718 with temperature through synchrotron X-rays," 58th AIAA/ASCE/AHS/ASC Structural Dynamics, and Materials Conference, AIAA SciTech Forum, Grapevine, Texas, 9-13 January 2017.

2016:

Albert Manero II, Stephen Sofronsky, Katia Artzt, Stefan Hackemann, Janine Wischek, John Okasinski, Peter Kenesei, Jonathan Almer, Marion Bartsch, Seetha Raghavan*, “Interpreting High Temperature Deformation Behavior of a Ceramic Matrix Composite via High Energy X-rays and Numerical Simulation,” SciTech 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, San Diego, CA, 4-8 January 2016.

Imad Hanhan, Alex P. Selimov, Declan Carolan, Ambrose Taylor, Seetha Raghavan, “Characterizing Mechanical Properties of Hybrid Alumina Carbon Fiber Composites with Piezospectroscopy”, 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, San Diego, CA, 4-8 January 2016.

2015:

Albert C. Manero, Kevin Knipe, Carla Meid, Janine Wischek, Claudine Lacdao, Matthew Smith, John Okasinski, Jonathan Almer, Marion Bartsch, Anette Karlsson, Seetha Raghavan, "Comparison of Thermal Barrier Coating Stresses via High Energy X-Rays and Piezospectroscopy," SciTech 53rd AIAA Aerospace Sciences Meeting, Kissimmee, FL, 5-9 January 2015.

Gregory Freihofer, Seetha Raghavan, "Damage Mapping of Composites with Piezospectroscopic Coatings," SciTech 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, , Kissimmee, FL, 5-9 January 2015.

Erik Durnberg, Kevin Knipe, Gregory Freihofer, Imad Hanhan, Renfei Feng, Seetha Raghavan, "Particle Size Effect on Load Transfer in Single Particle Composite Samples via X-Ray Diffraction," SciTech 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Kissimmee, FL, 5-9 January 2015.

2014:

Gregory Freihofer, Seetha Raghavan, “Material State Measurements with Nanocomposite Piezospectroscopic Coatings,” SAMPE: The Composites and Advanced Materials Expo, Orlando FL, 14-16 October, 2014, Student paper competition 2^ndPlace Award.

G.Freihofer, A. Bullock, F. Vaughn, H. Tat, J. Dustin, A. Schülzgen, S. Raghavan, “Stress and Damage Sensing of Composite Coupons with Piezospectroscopic Coatings,” Proceedings of the Society for the Advancement of Material and Process Engineering 2014 conference, Seattle, Washington, 2-5 June 2014.

E. Durnberg, I. Hanhan, G. Freihofer, D. Lui, J. Gou, S. Raghavan, “Experimental Piezospectroscopic Measurements to Study Load Transfer in a Single Alumina Particle Embedded Within an Epoxy Matrix,” Proceedings of the Society for the Advancement of Material and Process Engineering 2014 conference, 2-5 June 2014, Seattle, Washington.

A. Jones, J.J. Rosas, S. Raghavan, “Variable Strain Rate In Situ Piezospectroscopic Studies of Alumina Nanocomposites”, Proceedings of the Society for the Advancement of Material and Process Engineering 2014 conference, 2-5 June 2014, Seattle, Washington.

K. Knipe, A. Manero II, S. Sofronsky, J. Okasinski, J. Almer, J. Wischek, C. Meid, A. Karlsson, M. Bartsch, S. Raghavan, “Synchrotron XRD Measurements Mapping Internal Strains of Thermal Barrier Coatings During Thermal Gradient Mechanical Fatigue Loading,” ASME Turbo Expo: Power for Land, Sea, and Air, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, 2014.

Gregory Freihofer, Ankur Gupta, Amy Van Newkirk, Sudipta Seal, and Seetha Raghavan "Optical Stress Sensing Alumina Nanocomposite Coatings for Aerospace Structures”, AIAA SciTech 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, 13-17 January 2014, National Harbor, Maryland.

Erik Durnberg, Ashley Jones, Joseangel Rosas, George Sunny, and Seetha Raghavan, “Monitoring Strain Rate Effects on Nanocomposites using Piezospectroscopy”, AIAA SciTech 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, 13-17 January 2014, National Harbor, Maryland.

Kevin Knipe, Albert Manero, Sanna F. Siddiqui, Stephen Sofronsky, Pascal Fouquet, Carla Meid, Janine Wischek, Marion Bartsch, John Okasinski, Jonathan Almer, Anette Karlsson and Seetha Raghavan “Synchrotron XRD Measurements of Thermal Barrier Coatings Subjected to Loads Representing Operational Conditions of Rotating Gas Turbine Blades,” AIAA SciTech 52nd Aerospace Sciences Meeting, 13-17 January 2014, National Harbor, Maryland.

2013:

Gregory Freihofer, Daniela Fugon, Ashley Jones, Emrecan Ergin, Axel Schülzgen and Seetha Raghavan, “Prediction of Piezospectroscopic properties with nanoparticle load transfer theories”, Proceedings of the Society for the Advancement of Material and Process Engineering 2013 conference, 6-9 May 2013, Long Beach, California.

Ashley Jones, Greg Freihofer, Daniela Fugon, Marc Lowen, and Seetha Raghavan “Low Strain Rate in situ piezospectroscopic studies of Alumina Nanocomposites”, Proceedings of the Society for the Advancement of Material and Process Engineering 2013 conference, 6-9 May 2013, Long Beach, California.

Kevin Knipe, David Siljee, John Okasinski, Jonathan Almer, S. Raghavan, Sendil Rangaswamy “Simulations Mapping Stress Evolution in High Temperature Ceramic Coatings under Thermal-Mechanical Conditions”, AIAA Structures, Structural Dynamics, and Materials Conference, Boston, MA, 2013.

2012:

Ashley S. Jones, Gregory Freihofer, Emrecan Ergin, Kevin Lautenslager, Will Gysi, Axel Schülzgen, Seetha Raghavan and Hong Tat, “Embedded alumina nanoparticles as diagnostic coatings for structures”, Proceedings of the Society for the Advancement of Material and Process Engineering 2012 conference, 21-24 May 2012, Baltimore, MD. (Best paper award, 3rd place)

Gregory Freihofer, Spencer Frank, Emrecan Ergin, Ashley Jones, Amanda Stevenson, Axel Schülzgen and Seetha Raghavan and Hong Tat, “Measurement of load transfer within alumina nanoparticle epoxy composites using piezospectroscopy”, Proceedings of the Society for the Advancement of Material and Process Engineering 2012 conference, 21-24 May 2012, Baltimore, MD.

Field T., Jones A., Jansz M., Raghavan S., Okasinski J., Almer J. “Synchrotron X-rays Monitoring Nano-Aluminum Grain Growth of a Metal Matrix Composite under Thermo-mechanical Conditions”, Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 23-26th April 2012, Honolulu, Hawaii.

2011:

Freihofer, G., Wirth, Brian and Raghavan S. “Ex-Situ Raman Spectroscopy of Manufacturing Process for a MWNT Nanocomposite”, Proceedings of the Society for the Advancement of Material and Process Engineering 2011 conference, 23-26 May 2011, Long Beach, California.

Mohan, B., Freihofer, G. and Raghavan S. “An In situ Raman Stress Measurement Method for Tensile Testing of Carbon Nanofiber/Nanotube Composites”, Proceedings of the Society for the Advancement of Material and Process Engineering 2011 conference, 23-26 May 2011, Long Beach, California.

Amanda L. Stevenson, Ashley Jones and Seetha Raghavan, “Real-time monitoring of an adhesive lap shear test using piezospectroscopy”, Proceedings of the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 4-7th April 2011, Denver, Colorado.

Bharathi Mohan, Gregory Freihofer and Seetha Raghavan, “Measuring Tensile Stresses in CNF/Polymer composites using Raman Spectroscopy” Proceedings of the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 4-7th April 2011, Denver, Colorado.

Rene Diaz, Mitra Mossaddad, Anil Bozan, Seetha Raghavan, Jonathan Almer, John Okasinski, Hugo Palaez-Perez, Peter Imbrie, “In-Situ Strain Measurements of EB-PVD Thermal Barrier Coatings using Synchrotron X-Ray Diffraction under Thermo-Mechanical Loading”, Proceedings of the 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 7 January 2011, Orlando, Florida.

2010:

Amanda L. Wright & S. Raghavan “Effects of Stress on Alumina Nanocomposites Using Piezospectroscopy”, Proceedings of the Society for the Advancement of Material and Process Engineering 2010 conference, 17-20 May 2010, Seattle, Washington.

Gregory Freihofer, Adonay Jimenez and Seetha Raghavan “Optical Spectra of Carbon Nanotubes for Stress Measurements of Advanced Aerospace Structures”, Proceedings of the 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 12-15th April 2010, Orlando, Florida.

Amanda Wright, Christopher Gonzalez, Ashley Jones, Seetha Raghavan “Piezospectroscopic measurements on Alumina Epoxy Composites” Proceedings of the 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 12-15th April 2010, Orlando, Florida.

Sendil Rangaswamy, Seetha Raghavan, Mohammad Z. Ahmad, Thomas Clarke, Chris Ellis, Sergio Tafur, Ravi Palaniappan, “High Performance Computing Benchmark Tool for Parallel Processing of Large Models” AIAA Infotech@Aerospace 2010, 20 - 22 April 2010, Atlanta, Georgia.

G. Freihofer, B. Mohan & S.Raghavan, “In-situ techniques in optical spectroscopy for the analysis of carbon nanotubes”, Nanotech 2010, Chapter 1: Nanoscale Materials Characterization; pp 99-102, Anaheim, CA.

2007:

S. Raghavan & P.K. Imbrie, “ The Development of Photo-stimulated Luminescence Spectroscopy for 3D Stress Measurements in the Thermally Grown Oxide Layer of Thermal Barrier Coatings”, Proceedings of the Materials Science and Technology 2007 conference, September 16-20 2007, Detroit, Michigan.

S. Raghavan & P.K. Imbrie “A 3D Stress Measurement Model for Chromium-doped Alumina using the Photo-stimulated Luminescence Spectroscopy Technique”, Proceedings of the 44th Annual Technical Meeting of the Society of Engineering Science, October 21-24 2007, College Station, Texas.

2005:

P.K. Imbrie & S. Raghavan, “Work in Progress- A Remote e-laboratory for Student Investigation, Manipulation and Learning”, Proceedings of the 35th ASEE/IEEE Frontiers in Education conference, Oct 19-22 2005, Indianapolis.

Theses/Dissertations:

2020:

Johnathan Hernandez, "Experimentation and Simulation of Pulsed Eddy Current Thermography of Subsurface Aircraft Corrosive Defects" Masters Thesis, University of Central Florida, 2020 STARTS (2020 - 56).

Remelisa Esteves, "Piezospectroscopic Sensing Systems - Multi-Scale and In-Situ Sensing Technology for Structural Integrity" Masters Thesis, University of Central Florida, 2020, STARS (2020 - 42).

Zachary Stein, "Degradation From CMAS Infiltration in 7YSZ EB-PVD Thermal Barrier Coatings" Undergraduate Thesis, University of Central Florida, 2020 (2020 - 762).

2019:

Quentin Fouliard, "Characterization of Rare-Earth Doped Thermal Barrier Coatings for Phosphor Thermometry" Doctoral Dissertation, University of Central Florida, 2019, STARS.

Matthew Northam, "Investigation of PS-PVD and EB-PVD Thermal Barrier Coatings Over Lifetime Using Synchrotron X-ray Diffraction" Masters Thesis, University of Central Florida, 2019, STARS (CFE0007844).

Linda Rossmann, " Analysis of Residual Stress and Damage Mechanisms of Thermal Barrier Coatings Deposited via PS-PVD and EB-PVD" Masters Thesis, University of Central Florida, 2019, STARS (CFE0007717).

2017:

Sanjida Akter Jahan, "Characterization of mechanical properties in nanoparticle reinforced hybrid carbon fiber composites using photoluminescence piezospectroscopy" Masters Thesis, University of Central Florida, 2017, STARS (CFE0006886).

2016:

Albert Manero II, "High Temperature Mechanics of Aerospace Ceramic Composites via Synchrotron Radiation" Doctoral Dissertation, University of Central Florida, 2016, STARS (CFE0006836).

Alex Selimov, "Characterization of Dispersion and Residual Stress in Nanoparticle Reinforced Hybrid Carbon Fiber Composites", Undergraduate Thesis, University of Central Florida, 2016, STARS (233).

2015:

Imad Hanhan, "Hybrid Carbon Fiber Alumina Nanocomposite for Non-Contact Stress Sensing Via Piezospectroscopy", Honors Thesis, University of Central Florida, 2015, STARS (CFH0004750).

2014:

Sanna Siddiqui, "Synchrotron X-Ray Diffraction and Piezospectroscopy used for the Investigation of Individual Mechanical Effects from Environmental Contaminants and Oxide Layer Undulations in Thermal Barrier Coatings", Masters Thesis, University of Central Florida, 2014, STARS (CFE0005712).

Albert Manero, "Nondestructive Analysis of Advanced Aerospace Materials via Spectroscopy and Synchrotron Radiation", Masters Thesis, University of Central Florida, 2014, STARS (CFE0005657).

Kevin Knipe, "In-situ synchrotron studies of turbine blade thermal barrier coatings under extreme environments", Doctoral Dissertation, University of Central Florida, 2014, STARS (CFE0005640).

Gregory Freihofer, "Nanocomposite Coating Mechanics via Piezospectroscopy", Doctoral Dissertation, University of Central Florida, 2014, STARS (CFE0005614).

Erik Durnberg, "Load Transfer in an Isolated Particle Embedded within an Epoxy Matrix", Masters Thesis, University of Central Florida, 2014, STARS (CFE0005326).

Daniela Fugon-Dessources, "Piezospectroscopic Calibration of Alumina-Nanocomposites for the Development of Stress-Sensing Structures", Masters Thesis, University of Central Florida, 2014, STARS (CFE0005168).

2013:

Ashley Jones, "Low Strain Rate Studies Of Alumina Epoxy Composites Using Piezospectroscopy", Masters Thesis, University of Central Florida, 2013, STARS (CFE0005099).

2011:

Gregory J. Freihofer, "Enhancing Cnt-composites With Raman Spectroscopy", Masters Thesis, University of Central Florida, 2011, STARS (CFE0004110).

Melan N. Jansz “Effects of Thermo-mechanical Loading From In-situ Studies of EB-PVD Thermal Barrier Coatings”, Masters Thesis, University of Central Florida, 2011, STARS (CFE0004004).

Amanda L. Stevenson "Calibration of Alumina-epoxy Nanocomposites Using Piezospectroscopy for the Development of Stress-sensing Adhesives", Masters Thesis, University of Central Florida, 2011, STARS (CFE0003744)

2008:

Seetha Raghavan, "The development of photo-stimulated luminescence spectroscopy for three-dimensional stress measurements", Doctoral Dissertation, Purdue University, 2008, ProQuest (3334068).

Book Chapter:

2016:

Gregory Freihofer, Seetha Raghavan*, "Characterization and Performance of Stress and Damage Sensing Smart Coatings", In Majid Hosseini, ASH Maklouf (Eds), "Industrial Applications for Intelligent Polymers and Coatings", Volume 1, Springer, Germany, In Press 2016.

Cite DOI

Patents:

2022:

Perla Latorre Suarez, Quentin Fouliard, Seetha Raghavan, “Manufacturing Sensors Using Celestial Body Regolith”, U.S. Patent Application 63/394,908, filed 08/03/2022.

Quentin Fouliard, Ranajay Ghosh, and Seetha Raghavan. "Rare-earth doped thermal barrier coating bond coat for thermally grown oxide luminescence sensing." U.S. Patent 11,346,006, Granted 05/31/2022.

Quentin Fouliard, Ranajay Ghosh, and Seetha Raghavan. "Method for forming a temperature sensing layer within a thermal barrier coating." U.S. Patent Application 17/649,929, filed 05/19/2022.

2020:

Quentin Fouliard, Ranajay Ghosh, Seetha Raghavan. “System and Method to Reveal Temperature Gradients Across Thermal Barrier Coatings Using Phosphor Thermometry”, U.S. Patent Application 17/034,156, filed 09/28/2020.

Quentin Fouliard, Ranajay Ghosh, Seetha Raghavan. “Phosphor Thermometry System for Synchronized Luminescence Life-time Decay Measurements”, U.S. Patent Application 17/034,098, filed 09/28/2020.

2019:

Ravisankar Naraparaju, Uwe Schulz, Seetha Raghavan, Estefania Bohorquez, “Non-destructive cmas-infiltration characterization of thermal barrier coatings,”US Patent Pub. No. US20190293567A1. Granted 09/26/2019.

Cite

2013:

Seetha Raghavan, Amanda Stevenson, Ashley Jones, “Stress-sensitive material and methods for using same,” US Patent Pub. No. 20130082191A1. Granted 04/04/2013.

Cite

2006:

Seetha Raghavan, Ser Yong Lim, Stephen Wong Brian “An Apparatus for Ultrasonic Inspection of Flawed Materials” Patent assignee: Singapore Technologies Aerospace Ltd, (Singapore Patent Application Number 200107295-8, Publication Number: 118100) Granted 02/28/2006.

Posters/Video Presentations:

2021:

Hernandez J., Fouliard Q., Vo K., Ghosh R., Raghavan S., "A Study on Phosphor Thermometry Thermal Gradient Sensitivities for Gas Turbine Environments" UCF CREOL Industrial Affiliates Day, UCF, April, 2021.

Latorre-Suarez P., Madathil R., Segura-Watson N., Morales F., D’Esposito V., Raghavan S., “Developing a 3D Printing Method to Print Stress Sensing Sensors for Structural Health Monitoring” UCF Student Scholar Symposium, UCF, April, 2021 (Undergraduate Presentation Winner).

D’Esposito V., Stein Z., Raghavan S., “Effects of CMAS Infiltration on Thermal Barrier Coatings Analyzed by Confocal Raman Spectroscopy and Synchrotron High-Energy X-Rays” UCF Student Scholar Symposium, UCF, April, 2021.

2020:

Fouliard, Q., Ghosh, R., Raghavan, S., “Thermal Barrier Coating Delamination Evaluation using Luminescence Modeling” American Vacuum Society 2020 International Twitter Competition, July 2020.

Manero, A., Knipe, S., Raghavan, S., “Inside the Engine Environment: Synchrotrons Reveal Competing Influence of Thermal and Mechanical Loads on the Strain of Turbine Blade Coatings” American Vacuum Society 2020 International Twitter Competition, July 2020.

2019:

Fouliard Q., Ghosh R., Raghavan S., “In-Situ Optical Monitoring of Gas Turbine Blade Coatings Under Operational Extreme Environments” 2019 University Turbine Systems Research Project Review Meeting, Orlando, FL, November 2019.

Hernandez J., Fouliard Q., Northam M., Raghavan S., “High Temperature Characterization and Defect Detection through Pulsed Eddy Current Thermography” 2019 University Turbine Systems Research Project Review Meeting, Orlando, FL, November 2019.

Northam M., Rossmann L., Sarley B., Park J., Kenesei P., Almer J., Viswanathan V., Harder B., Raghavan S. “Mechanical properties of coatings by Electron-Beam Physical Vapor Deposition and Plasma-Spray Physical Vapor Deposition compared using Synchrotron X-ray diffraction” 2019 University Turbine Systems Research Project Review Meeting, Orlando, FL, November 2019.

Stein Z., Haldar S., Park J., Kenesei P., Almer J., Naraparaju R., Raghavan S., “CMAS Ingression Study on EB-PVD Thermal Barrier Coatings Using Synchrotron X-Ray Diffraction” Showcase of Undergraduate Research Excellence, UCF, April, 2019.

Smith M., Stein Z., Northam M., Rossmann L., Sarley B., Park J., Kenesei P., Almer J., Harder B., Viswanathan V., Raghavan S., “Phase Volume Fraction Compared Between PS-PVD & EB-PVD After Thermal Cycling Via X-Ray Diffraction” Showcase of Undergraduate Research Excellence, UCF, April, 2019.

Reed N., Latorre-Suarez P., Vo K., Hoover R., Esteves R., Olvera A., Hernandez J., Raghavan S., “Stress Sensing of Alumina-Epoxy Coatings with Varying Volume Fractions of Alumina Particles using Photoluminescence Piezospectroscopy” Showcase of Undergraduate Research Excellence, UCF, April, 2019.

Vo K., Stein Z., Esteves R., Gu S., Gou J., Raghavan S., “3D Printed Stress Sensing Coating on Composite Materials” Showcase of Undergraduate Research Excellence, UCF, April, 2019.

Fouliard, Q., Haldar, S., Ghosh, R., & Raghavan, S. “Configurations of Luminescence-based Temperature-Sensing Thermal Barrier Coatings.” Graduate Research Forum, UCF, April, 2019.

Fouliard, Q., Haldar, S., Ghosh, R., & Raghavan, S. ”Configurations of Luminescence-based Temperature-Sensing Thermal Barrier Coatings.” Industrial Affiliates Symposium, UCF CREOL, The College of Optics and Photonics, March 14-15, 2019.

2018:

Fouliard, Q., Haldar, S., Ghosh, R., & Raghavan, S. ”Configurations of Luminescence-based Temperature-Sensing Thermal Barrier Coatings.” University Turbine Systems Research Project Review Meeting, Daytona Beach, FL, 2018.

Northam M., Rossmann L., Sarley B., Park J., Kenesei P., Almer J., Viswanathan V., Harder B., Raghavan S. “Mechanical properties of coatings by Electron-Beam Physical Vapor Deposition and Plasma-Spray Physical Vapor Deposition compared using Synchrotron X-ray diffraction” University Turbine Systems Research Project Review Meeting, Daytona Beach, FL, 2018.

Haldar S., Fouliard Q., Warren P., Moreno D., McCay M., Park J., Kenesei P., Almer J., Ghosh R., Raghavan S., “Synchrotron X-Ray Diffraction Measurements of Thermal Barrier Coating Configurations with Rare Earth Elements for Phosphor Thermometry” University Turbine Systems Research Project Review Meeting, Daytona Beach, FL, 2018.