A5032758722- Intermetallics and Advanced Alloy Properties
- Metal and Thin Film Mechanics
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Diamond and Carbon-based Materials Research
- Advanced Materials Characterization Techniques
- Advanced materials and composites
- Advanced ceramic materials synthesis
- MXene and MAX Phase Materials
- High Temperature Alloys and Creep
- Aluminum Alloys Composites Properties
- Shape Memory Alloy Transformations
- Metallurgical and Alloy Processes
- Additive Manufacturing Materials and Processes
- Aluminum Alloy Microstructure Properties
- Force Microscopy Techniques and Applications
- Microstructure and Mechanical Properties of Steels
- Titanium Alloys Microstructure and Properties
- Nuclear Materials and Properties
- Catalytic Processes in Materials Science
- Dendrimers and Hyperbranched Polymers
- Additive Manufacturing and 3D Printing Technologies
- Wood Treatment and Properties
- Boron and Carbon Nanomaterials Research
- Chalcogenide Semiconductor Thin Films
University of Alabama
2015-2024
Karagozian & Case (United States)
2016-2024
525 Solutions (United States)
2024
University of South Florida
2016
University of Tampa
2016
University of South Alabama
2016
Rockwell Automation (United States)
2014
Alcoa (United States)
2013
Florida A&M University - Florida State University College of Engineering
1996-1999
University of Florida
1990-1996
The understanding of the oxidation behaviors as-cast and annealed high-entropy alloys (HEAs) is currently limited. This work systematically investigates influence annealing on microstructures AlCoCrFeNi-based HEAs. Annealing was found to alter distribution Al-rich phases which caused a change in mechanisms. In general, all three investigated HEAs displayed some degree transient at 1050 °C that later followed by protective, parabolic oxide growth. respective are discussed relative existing...
Abstract Antimony selenide (Sb 2 Se 3 ) has excellent directional optical and electronic behaviors due to its quasi‐1D nanoribbons structure. The photovoltaic performance of Sb solar cells largely depends on the orientation nanoribbons. It is desired grow these ribbons normal substrate enhance photoexcited carrier transport. Therefore, it necessary develop a strategy for vertical growth achieve high‐efficiency cells. Since antimony sulfide S are from same space group (Pbnm) have crystal...
High-entropy alloys (HEAs) are new alloy systems that leverage solid solution strengthening to develop high-strength structural materials. However, HEAs typically cast alloys, which may suffer from large as-cast grains and entrapped porosity, allowing for opportunities further refine the microstructure in a non-melting near-net shape solid-state additive manufacturing process, friction stir deposition (AFSD). The present research compares mechanical behavior of as-deposited AFSD...
The impacts of thermal treatment on the precipitate morphology and oxidation behavior a dual-phase (FCC + L12) multi-principal element alloy (MPEA), Ni45Co17Cr14Fe12Al7Ti5, was studied at 1000 °C via isothermal cyclic testing. Thermogravimetric analysis subsequent characterization revealed that smaller precipitates had an increased capacity to form protective sub-surface oxide layers which mitigated total mass gain. smaller-precipitate-containing samples exhibited decrease in thickness...
Ultra-high temperature ceramics (UHTCs), most notably transition metal carbides and borides, exhibit melting temperatures exceeding 3000 °C, making them appropriate candidates to withstand the extreme (∼2000 °C) expected occur at leading edges of hypersonic vehicles. However, their propensity react rapidly with oxygen limits sustained application. The high entropy paradigm enables exploration novel UHTC compositions that may improve on oxidation resistance conventional refractory...