A5078428285- Additive Manufacturing Materials and Processes
- High Temperature Alloys and Creep
- Microstructure and mechanical properties
- Microstructure and Mechanical Properties of Steels
- Fatigue and fracture mechanics
- Machine Learning in Materials Science
- Integrated Circuits and Semiconductor Failure Analysis
- Electron and X-Ray Spectroscopy Techniques
- Metallurgy and Material Forming
- Hydrogen embrittlement and corrosion behaviors in metals
- Titanium Alloys Microstructure and Properties
- Optical measurement and interference techniques
- Ion-surface interactions and analysis
- High Entropy Alloys Studies
- Laser Material Processing Techniques
- Non-Destructive Testing Techniques
- Advanced X-ray and CT Imaging
- Advanced X-ray Imaging Techniques
- Additive Manufacturing and 3D Printing Technologies
- Advanced Electron Microscopy Techniques and Applications
- Advanced Materials Characterization Techniques
- Advanced materials and composites
- Welding Techniques and Residual Stresses
- Diamond and Carbon-based Materials Research
- Force Microscopy Techniques and Applications
University of California, Santa Barbara
2015-2024
Material (Belgium)
2016
University of Michigan
2011
The unique capabilities of ultrashort pulse femtosecond lasers have been integrated with a focused ion beam (FIB) platform to create new system for rapid 3D materials analysis. laser allows in situ layer-by-layer material ablation high removal rates. frequency (1 kHz) (150 fs) pulses can induce virtually no thermal damage the surrounding area, permitting resolution imaging, as well crystallographic and elemental analysis, without intermediate surface preparation or sample from chamber....
High performance III-V lasers at datacom and telecom wavelengths on on-axis (001) Si are needed for scalable datacenter interconnect technologies. We demonstrate electrically injected quantum dot grown patterned with {111} v-grooves lying in the [110] direction. No additional Ge buffers or substrate miscut was used. The active region consists of five InAs/InGaAs dot-in-a-well layers. achieve continuous wave lasing thresholds as low 36 mA operation up to 80°C.
Here we explore the range of serial sectioning techniques that have evolved over past decade, providing a comprehensive toolkit for capturing rich 3D microstructures, chemistries and crystallographic information, with sub-micron resolution at volumes extend out to mm3 or even cm3. In each case consider challenges associated their application, they can analyze, damage surface impart, suitability different materials. certain cases these warrant hybrid methods, motivating workflows leverage...
Refractory alloys can be difficult to fabricate by laser-based manufacturing methods due their high melting temperatures, interstitial solubility, and propensity for low temperature brittleness. Laser-based processes, such as welding additive (AM), yield similar populations of defects, including microsegregation solidification solid-state cracking. Given the extreme challenges cost associated with production refractory powders, this research aimed develop a rapid screening methodology that...
Abstract Large language models (LLMs), such as ChatGPT and PaLM, are able to perform sophisticated text comprehension generation tasks with little or no training. Alongside their broader societal impacts, these capabilities carry great promise for the physical sciences, including applied mechanics. We present a summary of recent developments in models, application mechanics adjacent fields, perspective on future use mechanics, taking into account limitations unique challenges field.
The quest for novel materials used in technologies demanding extreme performance has been accelerated by advances computational screening, additive manufacturing routes, and characterization probes. Despite tremendous progress, the pace of adoption new still not met promise global initiatives discovery. This challenge is particularly acute structural with thermomechanical environmental demands whose depends on microstructure as well material composition. In this prospective article, we...