A5038272049- Advanced Surface Polishing Techniques
- Advanced machining processes and optimization
- Laser Material Processing Techniques
- Advanced Measurement and Metrology Techniques
- Additive Manufacturing Materials and Processes
- Extraction and Separation Processes
- nanoparticles nucleation surface interactions
- Advanced ceramic materials synthesis
- High-Velocity Impact and Material Behavior
- Welding Techniques and Residual Stresses
- High Entropy Alloys Studies
- Advanced materials and composites
- Advancements in Battery Materials
- Advanced Machining and Optimization Techniques
- Microstructure and mechanical properties
- Electron and X-Ray Spectroscopy Techniques
- Additive Manufacturing and 3D Printing Technologies
- Metal and Thin Film Mechanics
- Ion-surface interactions and analysis
University of Wisconsin–Madison
2018-2023
Korea Aerospace University
2020
In this paper, the modified slip/fracture activation model has been used in order to understand mechanism of ductile-brittle transition on R-plane sapphire during ultra-precision machining by reflecting direction resultant force. Anisotropic characteristics crack morphology and ductility depending cutting were explained detail with fracture cleavage plastic deformation parameters. Through analysis, it was concluded that morphologies mainly determined interaction multiple systems activated...
Processing ceramics like sapphire is challenging due to the brittle response exhibited during machining which poses a limitation on maximum material removal rate and throughput of process. Due this limitation, has be removed in small increments order create required form shape. This study investigates overlapping operation whether existing surface cracks can by taking advantage anisotropy sapphire. Scribing cuts were performed A- R-plane at various depths results show that even when depth...
Lithium-ion batteries (LIBs) require Ni-rich cathode material with a high capacity to meet the growing demand for powering electric vehicles and other energy-dense devices. However, significant challenges remain improve retention during cycling thermal-abuse tolerance of this material. Alternative traditional polycrystalline material, we report here monocrystalline prepared via hydrothermal process. composition (LiNi 0.96 Mn 0.02 Co O 2 ) was selected comparative evaluation co-precipitation...