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Gregory N. Morscher
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Journal Articles

Cracking Behavior of Environmental Barrier Coatings/Ceramic Matrix Composite System Using Acoustic Emission and Digital Image Correlation

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Ragav P. Panakarajupally, Gregory N. Morscher, Jun Shi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121018.
Paper No: GTP-24-1273
https://doi.org/10.1115/1.4066211
Published Online: September 6, 2024
View Articletitled, Cracking Behavior of Environmental Barrier Coatings/Ceramic Matrix Composite System Using Acoustic Emission and Digital Image Correlation
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Topics: Acoustic emissions, Ceramic matrix composites, Coating processes, Coatings, Fracture (Materials), Fracture (Process), Stress, Inspection
Proceedings Papers

Cracking Behavior of Environmental Barrier Coatings/CMC System Using Acoustic Emission and Digital Image Correlation

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Ragavendra Prasad Panakarajupally, Gregory N. Morscher, Jun Shi
Proc. ASME. GT2024, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129523
https://doi.org/10.1115/GT2024-129523
View Paper titled, Cracking Behavior of Environmental Barrier Coatings/CMC System Using Acoustic Emission and Digital Image Correlation
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Topics: Acoustic emissions, Ceramic matrix composites, Coatings, Fracture (Process)
Journal Articles

Mechanical Characterization of Bi-Layer Environmental Barrier Coatings Under Tension and Bending Using Acoustic Emission and Digital Image Correlation

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Ragav P. Panakarajupally, Gregory N. Morscher, Jun Shi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2024, 146(2): 021008.
Paper No: GTP-23-1435
https://doi.org/10.1115/1.4063385
Published Online: October 25, 2023
View Articletitled, Mechanical Characterization of Bi-Layer Environmental Barrier Coatings Under Tension and Bending Using Acoustic Emission and Digital Image Correlation
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Topics: Acoustic emissions, Ceramic matrix composites, Coatings, Fracture (Materials), Stress, Tension
Proceedings Papers

ICME Modeling of Erosion in Coated Metal Alloys and SiC-Based Ceramic Matrix Composites (CMC’s)

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Amirhossein Eftekharian, Joshua Park, Gregory N. Morscher, Dade Huang, Rashid Miraj, Frank Abdi
Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104088
https://doi.org/10.1115/GT2023-104088
View Paper titled, ICME Modeling of Erosion in Coated Metal Alloys and SiC-Based Ceramic Matrix Composites (CMC’s)
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Topics: Alloys, Ceramic matrix composites, Coating processes, Delamination, Erosion, Fracture (Materials), Modeling
Proceedings Papers

ICME Simulation of APS Process and Damage in Ceramic Coatings

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Mallikharjun Marrey, Dade Huang, Gregory N. Morscher, Rashid Miraj, Frank Abdi, Daniel Ballant, George Jefferson, Ragavendra P. Panakarjupally
Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A013, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104103
https://doi.org/10.1115/GT2023-104103
View Paper titled, ICME Simulation of APS Process and Damage in Ceramic Coatings
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Topics: Ceramic coatings, Damage, Plasmas (Ionized gases), Simulation, Thermal barrier coatings
Proceedings Papers

Influence of Elevated Temperature Solid Particle Erosion on Strength Degradation of Oxide/Oxide Ceramic Matrix Composites

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Farhan Mirza, Ragav P. Panakarajupally, J. E. Rassi, Gregory N. Morscher, Frank Abdi, Sung Choi
Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102371
https://doi.org/10.1115/GT2023-102371
View Paper titled, Influence of Elevated Temperature Solid Particle Erosion on Strength Degradation of Oxide/Oxide Ceramic Matrix Composites
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Topics: Composite materials, Erosion, Oxide ceramics, Particulate matter, Temperature
Proceedings Papers

Mechanical Characterization of Bi-Layer EBC Coatings Under Tension and Bending Using Acoustic Emission and Digital Image Correlation

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Ragav P. Panakarajupally, Gregory N. Morscher, Jun Shi
Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102609
https://doi.org/10.1115/GT2023-102609
View Paper titled, Mechanical Characterization of Bi-Layer EBC Coatings Under Tension and Bending Using Acoustic Emission and Digital Image Correlation
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Topics: Acoustic emissions, Coatings, Tension
Proceedings Papers

Advancement of Electrical Resistance Towards Monitoring Crack Growth in SiC Based Composites at Elevated Temperatures

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Joseph El Rassi, Gregory N. Morscher
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A007, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83010
https://doi.org/10.1115/GT2022-83010
View Paper titled, Advancement of Electrical Resistance Towards Monitoring Crack Growth in SiC Based Composites at Elevated Temperatures
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Topics: Composite materials, Electrical resistance, Fracture (Materials), Temperature
Proceedings Papers

ICME Modeling of Erosion in Gas-Turbine Grade CMC and HVOF Test

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Frank Abdi, Amirhossein Eftekharian, Dade Huang, Sung Choi, Gregory N. Morscher, Ragavendra P. Panakarajupally
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A009, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83279
https://doi.org/10.1115/GT2022-83279
View Paper titled, ICME Modeling of Erosion in Gas-Turbine Grade CMC and HVOF Test
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Topics: Cavities, Ceramic matrix composites, Erosion, Gas turbines, Microcracks, Modeling, Temperature
Proceedings Papers

ICME Computational Framework for Ceramic APS Coatings

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Frank Abdi, Surekha Achanta, Harsh Baid, Vasyl Harik, Reza Yaghmaie, Gregory N. Morscher, Daniel Balint, Larry Zawada, George Jefferson
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A011, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83469
https://doi.org/10.1115/GT2022-83469
View Paper titled, ICME Computational Framework for Ceramic APS Coatings
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Topics: Ceramics, Coatings, Damage, Furnaces, Plasmas (Ionized gases), Sprays, Thermal barrier coatings
Proceedings Papers

Residual Strength of Turbine Grade Ceramic Matrix Composites After Being Subjected to Solid Particle Erosion at Elevated Temperatures

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Farhan Mirza, Ragav P. Panakarajupally, Gregory N. Morscher, Frank Abdi, Sung Choi
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A010, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83465
https://doi.org/10.1115/GT2022-83465
View Paper titled, Residual Strength of Turbine Grade Ceramic Matrix Composites After Being Subjected to Solid Particle Erosion at Elevated Temperatures
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Topics: Ceramic matrix composites, Erosion, Particulate matter, Temperature, Turbines
Journal Articles

Constituent and Ply-Level Understanding of Electrical Resistance in Si-Containing SiC/SiC Composites

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Joseph El Rassi, Gregory N. Morscher
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111006.
Paper No: GTP-21-1242
https://doi.org/10.1115/1.4051867
Published Online: September 27, 2021
View Articletitled, Constituent and Ply-Level Understanding of Electrical Resistance in Si-Containing SiC/SiC Composites
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Topics: Composite materials, Damage, Electrical resistance, Electrical resistivity, Fibers, Fracture (Materials), Ceramic matrix composites, Architecture, Circuits, Tunnels
Proceedings Papers

Constituent and Ply Level Understanding of Electrical Resistance in Si-Containing SiC/SiC Composites

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Joseph El Rassi, Gregory N. Morscher
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T02A011, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60395
https://doi.org/10.1115/GT2021-60395
View Paper titled, Constituent and Ply Level Understanding of Electrical Resistance in Si-Containing SiC/SiC Composites
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Topics: Ceramic matrix composites, Composite materials, Electrical resistance
Proceedings Papers

Erosion Evaluation of Gas-Turbine Grade CMC’s at Room and Elevated Temperatures

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Amirhossein Eftekharian, Ragav P. Panakarajupally, Gregory N. Morscher, Dade Huang, Frank Abdi, Sung Choi
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T02A007, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59782
https://doi.org/10.1115/GT2021-59782
View Paper titled, Erosion Evaluation of Gas-Turbine Grade CMC’s at Room and Elevated Temperatures
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Topics: Ceramic matrix composites, Erosion, Fuels, Gas turbines, Microcracks, Modeling, Oxygen, Temperature
Journal Articles

Monitoring Damage in Nonoxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers as Embedded Electrical Resistance Sensors

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Ragav P. Panakarajupally, Joseph El Rassi, K. Manigandan, Yogesh P. Singh, Gregory N. Morscher
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051027.
Paper No: GTP-20-1418
https://doi.org/10.1115/1.4048694
Published Online: March 15, 2021
View Articletitled, Monitoring Damage in Nonoxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers as Embedded Electrical Resistance Sensors
Open the PDF for Monitoring Damage in Nonoxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers as Embedded Electrical Resistance Sensors in another window
Topics: Carbon, Composite materials, Fibers, Temperature, High temperature, Damage, Fatigue, Fracture (Materials), Chemical vapor deposition, Electrical resistance
Proceedings Papers

Monitoring Damage in Non-Oxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers As Embedded Electrical Resistance Sensors

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Ragav P. Panakarajupally, Joseph Elrassi, K. Manigandan, Yogesh P. Singh, Gregory N. Morscher
Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T02A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15937
https://doi.org/10.1115/GT2020-15937
View Paper titled, Monitoring Damage in Non-Oxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers As Embedded Electrical Resistance Sensors
Open the PDF for Monitoring Damage in Non-Oxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers As Embedded Electrical Resistance Sensors in another window
Topics: Carbon, Chemical vapor deposition, Composite materials, Damage, Electrical resistance, Fibers, High temperature, Sensors, Temperature, Fracture (Materials)
Proceedings Papers

Fatigue Characterization of SiC/SiC Ceramic Matrix Composites in Combustion Environment

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Ragav P. Panakarajupally, Joseph Elrassi, K. Manigandan, Gregory N. Morscher
Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T02A006, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15521
https://doi.org/10.1115/GT2020-15521
View Paper titled, Fatigue Characterization of SiC/SiC Ceramic Matrix Composites in Combustion Environment
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Topics: Combustion, Composite materials, Fatigue, Silicon carbide ceramics, Furnaces, Stress, Temperature, Ceramic matrix composites, Cycles, Damage
Proceedings Papers

Design Framework for Optimized Multifunctional Coatings

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Nima Moazami, Frank Abdi, Gregory N. Morscher, Cody Godines, Larry Zawada, George Jefferson, Jalees Ahmed
Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T02A004, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15068
https://doi.org/10.1115/GT2020-15068
View Paper titled, Design Framework for Optimized Multifunctional Coatings
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Topics: Coatings, Design, Durability, Modeling, Service life (Equipment), Thermal conductivity
Journal Articles

Fatigue Characterization of SiC/SiC Ceramic Matrix Composites in Combustion Environment

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Ragav P. Panakarajupally, Joseph El Rassi, K. Manigandan, Gregory N. Morscher
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2020, 142(12): 121004.
Paper No: GTP-20-1417
https://doi.org/10.1115/1.4048460
Published Online: November 18, 2020
View Articletitled, Fatigue Characterization of SiC/SiC Ceramic Matrix Composites in Combustion Environment
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Topics: Combustion, Composite materials, Fatigue, Fracture (Materials), Fracture (Process), Furnaces, Oxidation, Stress, Temperature, Fibers
Journal Articles

An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite

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Michael J. Presby, Manigandan Kannan, Gregory N. Morscher, Cody Godines, Amirhossein Eftekharian, Jalees Ahmad, Frank Abdi, Sung R. Choi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041027.
Paper No: GTP-19-1312
https://doi.org/10.1115/1.4044490
Published Online: February 18, 2020
View Articletitled, An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite
Open the PDF for An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite in another window
Topics: Bending (Stress), Fracture (Materials), Fracture toughness, Testing, Ceramic matrix composites