A5066780246- Supercapacitor Materials and Fabrication
- Nanoporous metals and alloys
- Advanced Battery Materials and Technologies
- Copper-based nanomaterials and applications
- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Microstructure and mechanical properties
- Thermal Expansion and Ionic Conductivity
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Microstructure and Mechanical Properties of Steels
- Anodic Oxide Films and Nanostructures
- Advanced battery technologies research
- Pickering emulsions and particle stabilization
Kookmin University
2019-2023
Abstract The tensile and compressive behaviors of 316L stainless steel at room temperature were compared. differences between the stress–strain responses during tension compression explained by different evolutions texture, defect structure, phase composition. It was found that up to true strain ~ 25 pct flow stress only slightly higher (by 40 MPa) than compression, which can be textures two types specimens. On other hand, strains 50 pct, hardening for much higher, resulted in a 200 MPa...
Cu nanofoams are promising materials for a variety of applications, including anodes in high-performance lithium-ion batteries. The high specific surface area these supports capacity and porous structure that helps accommodate volume expansion which occurs as batteries charged. One the most efficient methods to produce is dealloying alloy precursors. This process often yields have low strength, thus requiring additional heat treatment improve mechanical properties foams. paper provides...
Cu nanoporous foams are promising candidates for use as an anode material advanced lithium ion batteries. In this study, nanofoam was processed from pack-cemented bulk via dealloying. the as-processed nanofoam, average ligament size ~105 nm. The hardness in initial state ~2 MPa, and numerous cracks were observed indentation pattern obtained after testing, thus indicating low mechanical strength of material. Annealing 6 h under Ar atmosphere at 400 °C shown to result crystalline coarsening a...
Abstract Copper nanofoams were processed by dealloying for a prospective application as Li-ion battery anode. The precursor material was produced pack cementation. effect of length pack-cementation time on the pore structure and microstructure struts investigated in this study. It found that high times hierarchical with nano- micro-sized pores formed. In addition, longer time, lower crystallite size dislocation density struts. A very twin fault probability also detected, irrespective time.