A5065865908- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- Additive Manufacturing and 3D Printing Technologies
- Advanced ceramic materials synthesis
- Mechanical Behavior of Composites
- Advanced Surface Polishing Techniques
- Wind and Air Flow Studies
- High Entropy Alloys Studies
- Microstructure and mechanical properties
- Metal and Thin Film Mechanics
- Titanium Alloys Microstructure and Properties
- Structural Analysis of Composite Materials
- High-Temperature Coating Behaviors
- Advanced X-ray Imaging Techniques
- Advanced machining processes and optimization
- Structural Health Monitoring Techniques
- Cellular and Composite Structures
- Innovations in Concrete and Construction Materials
- Optical measurement and interference techniques
- Advanced X-ray and CT Imaging
- Radiation Effects in Electronics
- Fiber-reinforced polymer composites
- Supercapacitor Materials and Fabrication
- Asphalt Pavement Performance Evaluation
- Pickering emulsions and particle stabilization
Johns Hopkins University Applied Physics Laboratory
2021-2023
Wright-Patterson Air Force Base
2020-2021
United States Air Force Research Laboratory
2020-2021
University of Virginia
2015-2020
San Jose State University
2007
The superlative strength-to-weight ratio of carbon fibers (CFs) can substantially reduce vehicle weight and improve energy efficiency. However, most CFs are derived from costly polyacrylonitrile (PAN), which limits their widespread adoption in the automotive industry. Extensive efforts to produce low cost, alternative precursor materials have failed yield a commercially viable product. Here, we revisit PAN study its conversion chemistry microstructure evolution, might provide clues for...
Abstract Fire and deflagration that might occur in high-energy content/high-power lithium ion (Li-ion) batteries are due to propagation of thermal runaway (TR) from just a single failing “trigger” cell the remaining fully-functional cells. Here we describe iterative housing designs multi-cell Li-ion battery module with goal preventing cell-to-cell TR trigger cells module. After series experimental tests iterations, demonstrate module, containing eight fully charged 18650 connected series,...
Abstract A new, in situ hermeticity testing apparatus has been developed to allow helium leak evaluation of ceramic tubes, including nuclear‐grade SiC/SiC fuel cladding matrix composites (CMC), during four‐point bending with simultaneous monitoring local deformation and damage, using stereoscopic digital image correlation (DIC) acoustic emissions. The capabilities the experimental are demonstrated alumina, borosilicate glass, 4130 steel tubes representative dimensions then applied study...
In the era of big data, materials science workflows need to handle large-scale data distribution, storage, and computation. Any these areas can become a performance bottleneck. We present framework for analyzing internal material structures (e.g., cracks) mitigate bottlenecks. demonstrate effectiveness our workflow performing synchrotron X-ray computed tomography reconstruction segmentation silica-based structure. Our provides cloud-based, cutting-edge solution challenges such as growing...
Abstract The performance of braided ceramic matrix composites has been shown to depend on the spatial arrangement tows; therefore, a new class tools is required measure irregularities in composite architecture for components with intricate geometries. We report scalable and robust reconstruction technique built upon stereoscopic digital image correlation that able efficiently position tows arbitrarily shaped composites. This method was applied triaxially tubes intended use as nuclear fuel...