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Ravinder Diwan
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Proceedings Papers

Thermo-Mechanical Study of the Role of Gd 2 Zr 2 O 7 (GZ) in Improving Life of YSZ and GZ Double Layered Thermal Barrier Coatings

Patrick F. Mensah, Ravinder Diwan, Swamy Nandikolla, Omotola Coker, Purush Sahoo
Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 3083-3088, November 9–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2012-88279
https://doi.org/10.1115/IMECE2012-88279
View Paper titled, Thermo-Mechanical Study of the Role of Gd 2 Zr 2 O 7 (GZ) in Improving Life of YSZ and GZ Double Layered Thermal Barrier Coatings
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Topics: Thermal barrier coatings, Thermomechanics, Zirconium, Coatings, Elasticity, Delamination, Gadolinium, Plasma spraying, Porosity, Sintering
Journal Articles

Thermal Modeling and Analysis of a Thermal Barrier Coating Structure Using Non-Fourier Heat Conduction

Stephen Akwaboa, Patrick Mensah, Ebubekir Beyazouglu, Ravinder Diwan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2012, 134(11): 111301.
https://doi.org/10.1115/1.4006976
Published Online: September 28, 2012
View Article titled, Thermal Modeling and Analysis of a Thermal Barrier Coating Structure Using Non-Fourier Heat Conduction
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Topics: Finite volume methods, Heat conduction, Heat flux, Relaxation (Physics), Stability, Temperature, Temperature distribution, Thermal barrier coatings, Thermal conductivity, Thermal diffusivity
Proceedings Papers

Thermal Conductivity Prediction for Thermal Barrier Coatings

Monica B. Silva, S. M. Guo, Patrick F. Mensah, Ravinder Diwan
Proc. ASME. IMECE2010, Volume 5: Energy Systems Analysis, Thermodynamics and Sustainability; NanoEngineering for Energy; Engineering to Address Climate Change, Parts A and B, 1475-1484, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-38728
https://doi.org/10.1115/IMECE2010-38728
View Paper titled, Thermal Conductivity Prediction for Thermal Barrier Coatings
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Topics: Thermal barrier coatings, Thermal conductivity, Porosity, Temperature, Coatings, Disks, Gas turbines, Grain size, Interfacial thermal resistance, Lasers
Proceedings Papers

Effects of Thermal Radiation on Air Plasma Spray (APS) Coated Gas Turbine Blade

Stephen Akwaboa, Patrick Mensah, Ravinder Diwan
Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 627-633, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23660
https://doi.org/10.1115/GT2010-23660
View Paper titled, Effects of Thermal Radiation on Air Plasma Spray (APS) Coated Gas Turbine Blade
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Topics: Blades, Gas turbines, Plasmas (Ionized gases), Sprays, Thermal barrier coatings, Thermal radiation, Radiation (Physics), Temperature distribution, Metals, Oxidation
Proceedings Papers

Porosity and Thermal Cycling Behavior of Plasma Sprayed and EBPVD Thermal Barrier Coatings

Ogad Agu, Ravinder Diwan, Patrick F. Mensah, Monica B. Silva, S. M. Guo
Proc. ASME. GT2010, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 435-444, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22433
https://doi.org/10.1115/GT2010-22433
View Paper titled, Porosity and Thermal Cycling Behavior of Plasma Sprayed and EBPVD Thermal Barrier Coatings
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Topics: Plasmas (Ionized gases), Porosity, Sprays, Thermal barrier coatings
Proceedings Papers

Interfacial Kinetics of High Temperature Oxidation in YSZ Thermal Barrier Coatings With Bond Coatings of NiCoCrAlY With 0.25% Hf

Winston Soboyejo, Patrick Mensah, Ravinder Diwan
Proc. ASME. IMECE2009, Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2055-2062, November 13–19, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2009-11556
https://doi.org/10.1115/IMECE2009-11556
View Paper titled, Interfacial Kinetics of High Temperature Oxidation in YSZ Thermal Barrier Coatings With Bond Coatings of NiCoCrAlY With 0.25% Hf
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Topics: Coatings, High temperature, Oxidation, Thermal barrier coatings
Proceedings Papers

Comparison of Cyclic Oxidation Performance of APS and EBPVD Processed TBCs on In738 With a Bond Coat of NiCoCrAlY Powder With 0.25% Hf

Stephen Akwaboa, Monica B. Silva, Patrick Mensah, Ravinder Diwan, Douglas E. Wolfe, Shengmin Guo
Proc. ASME. IMECE2009, Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2063-2068, November 13–19, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2009-11901
https://doi.org/10.1115/IMECE2009-11901
View Paper titled, Comparison of Cyclic Oxidation Performance of APS and EBPVD Processed TBCs on In738 With a Bond Coat of NiCoCrAlY Powder With 0.25% Hf
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Topics: Oxidation, Porosity, Thermal barrier coatings, Thermal conductivity, Thermal diffusivity, Turbines, Coatings, Gas turbines, Lasers, Cathode ray oscilloscopes
Proceedings Papers

Thermal Property Measurements of YSZ-Al 2 O 3 Ceramic Composites

Monica B. Silva, S. M. Guo, Nalini Uppu, Ravinder Diwan, Patrick F. Mensah
Proc. ASME. GT2009, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 265-272, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59496
https://doi.org/10.1115/GT2009-59496
View Paper titled, Thermal Property Measurements of YSZ-Al 2 O 3 Ceramic Composites
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Topics: Ceramic composites, Thermal barrier coatings, Thermal conductivity, Thermal diffusivity, Thermal properties, Composite materials, Porosity, Aluminum, Coating processes, Coatings
Proceedings Papers

Porosity Effects on Thermo-Physical Properties of Standard and Vertically Cracked Thermal Barrier Coating Samples

Monica B. Silva, S. M. Guo, Nalini Uppu, Ravinder Diwan, Patrick F. Mensah
Proc. ASME. GT2009, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 289-298, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59826
https://doi.org/10.1115/GT2009-59826
View Paper titled, Porosity Effects on Thermo-Physical Properties of Standard and Vertically Cracked Thermal Barrier Coating Samples
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Topics: Plasmas (Ionized gases), Porosity, Sprays, Thermal barrier coatings, Thermal conductivity, Thermal diffusivity
Proceedings Papers

Performance of Vertical Cracked Air Plasma Spray Processed Thermal Barrier Coatings: Thermo-Physical Properties Measurements, and Effects of Thermal Stress on Thermal Cycling Failure

Patrick F. Mensah, Nalini Uppu, Ravinder Diwan
Proc. ASME. HT2008, Heat Transfer: Volume 1, 677-684, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HT2008-56354
https://doi.org/10.1115/HT2008-56354
View Paper titled, Performance of Vertical Cracked Air Plasma Spray Processed Thermal Barrier Coatings: Thermo-Physical Properties Measurements, and Effects of Thermal Stress on Thermal Cycling Failure
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Topics: Failure, Plasmas (Ionized gases), Sprays, Thermal barrier coatings, Thermal stresses, Temperature, Cooling, Lasers, Stress analysis (Engineering), Thermal conductivity
Proceedings Papers

Two-Dimensional Thermal Performance Analysis of a Semi-Transparent Spectral Zirconia Thermal Barrier Coating

Nalini Uppu, Patrick F. Mensah, Ravinder Diwan
Proc. ASME. IMECE2004, Heat Transfer, Volume 1, 651-658, November 13–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2004-62356
https://doi.org/10.1115/IMECE2004-62356
View Paper titled, Two-Dimensional Thermal Performance Analysis of a Semi-Transparent Spectral Zirconia Thermal Barrier Coating
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Topics: Thermal barrier coatings, Transparency, Ceramics, Coating processes, Coatings, Alloys, Dimensions, Operating temperature, Temperature, Transients (Dynamics)