A5025108509- Aluminum Alloy Microstructure Properties
- Solidification and crystal growth phenomena
- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Metal and Thin Film Mechanics
- Advanced Materials Characterization Techniques
- Quasicrystal Structures and Properties
- Bauxite Residue and Utilization
- Petroleum Processing and Analysis
- High Temperature Alloys and Creep
- Heat transfer and supercritical fluids
- Tribology and Wear Analysis
- Metallurgy and Material Forming
- Nuclear Materials and Properties
- Diamond and Carbon-based Materials Research
- Fault Detection and Control Systems
- Machine Learning in Materials Science
- Intermetallics and Advanced Alloy Properties
- Non-Destructive Testing Techniques
- Magnesium Alloys: Properties and Applications
- Semiconductor materials and devices
University of Tennessee at Knoxville
2017-2023
GE Global Research (United States)
2023
Naval Research Laboratory Materials Science and Technology Division
2019-2023
Government of the United States of America
2019-2023
General Electric (United States)
2023
Oak Ridge National Laboratory
2017-2020
Microstructural stability is a critical factor to consider when designing new alloys for high-temperature applications. An Al-Cu alloy with Mn and Zr additions has recently been developed withstand extended exposures of up 350 °C. The addition in combination their segregation precipitate interfaces play significant role stabilizing the metastable θ′ precipitates responsible alloy's hardness; however, adding separately only improves 200 °C 300 °C, respectively. To this end, effect synergistic...
The coupling of artificial intelligence and materials characterizations has been a center piece almost all discovery efforts since 1990. Furthermore, with the constant development in probabilistic machine learning tools (i.e. models that can efficiently propagate uncertainty from inputs to outputs), synergistic interplay between expert knowledge model accuracy major driver for state-of-the-art research. However, there still exist challenges facing community today when it comes discovery. Be...
Ti(Si)N coatings were deposited on Si wafers via magnetron sputtering physical vapor deposition technique. Scanning electron microscopy and atomic force used to study the morphologies, grain size, thicknesses of different films. X-ray diffraction confirmed formation titanium nitride cubic phase. photoelectron spectroscopy (XPS) was silicon oxygen levels in films, high resolution XPS determine surface oxide ratios as well silicon–nitrogen environment. The hardness these films then determined...
The θʹ to θ phase transformation that occurs during overaging in Al-Cu alloys is detrimental for their mechanical properties. Experiments suggest the onset of this dependent on temperature and duration thermal exposure, but microstructural conditions which trigger are still unclear. In study, critical associated with predicted using thermodynamic analysis. We compare both new previously reported observations, also test predictions field modeling. This multi-pronged approach suggests tendency...
6 Ti(Si,V)N coatings were deposited on Si wafers via Magnetron Sputtering Physical Vapor Deposition (MS-PVD) technique. Scanning electron microscopy (SEM) and atomic force (AFM) used to study the morphologies of deferent films. X-ray Photoelectron Spectroscopy (XPS) was their compositions high resolution XPS determine surface oxide nitride ratios. diffraction confirmed formation titanium cubic phase. Nano indentation hardness these Ion assisting during PVD found reduce increase film density....
Microstructural stability is a critical factor to consider when designing new alloys for high-temperature applications. An Al-Cu alloy with Mn and Zr additions has recently been developed withstand extended exposures of up 350 °C. The addition in combination their segregation precipitate interfaces play significant role stabilizing the metastable θ' precipitates responsible alloy's hardness; however, adding separately only improves 200 °C 300 °C, respectively. To this end, effect synergistic...
The θʹ to θ phase transformation that occurs during overaging in Al-Cu alloys is detrimental for their mechanical properties. Experiments suggest the onset of this dependent on temperature and duration thermal exposure, but microstructural conditions which trigger are still unclear. In study, critical associated with predicted using thermodynamic analysis. We compare both new previously reported observations, also test predictions field modeling. This multi-pronged approach suggests tendency...