Engineering an ultra-fine grained microstructure, twins and stacking faults in PBF-LB/M Al-Si alloy via KoBo extrusion method

P Snopiński, K Matus, M Łagoda, ANS Appiah… - Journal of Alloys and …, 2024 - Elsevier
In this study, the microstructural and mechanical properties of an PBF-LB/M AlSi10Mg alloy
extruded by the KoBo process are investigated. Electron backscatter diffraction (EBSD) and …

Physical origin of enhanced electrical conduction in aluminum-graphene composites

K Nepal, C Ugwumadu, KN Subedi… - Applied Physics …, 2024 - pubs.aip.org
The electronic and transport properties of aluminum-graphene composite materials were
investigated using the ab initio plane wave density functional theory. The interfacial structure …

Electronic conductivity in metal-graphene composites: the role of disordered carbon structures, defects, and impurities

K Nepal, C Ugwumadu, A Gautam… - Journal of Physics …, 2024 - iopscience.iop.org
This paper explores the transport properties of aluminum-carbon composite material via ab
initio methods. Interfacial and elec-tronic dynamics of the aluminum-graphene interface …

Computer simulation of carbonization and graphitization of coal

C Ugwumadu, R Olson III, NL Smith, K Nepal… - …, 2023 - iopscience.iop.org
This study describes computer simulations of carbonization and graphite formation,
including the effects of hydrogen, nitrogen, oxygen, and sulfur. We introduce a novel …

[HTML][HTML] The structure of appalachian coal: Experiments and Ab initio modeling

C Ugwumadu, DA Drabold, NL Smith, J Trembly… - Carbon, 2024 - Elsevier
This study focuses on the construction of small-scale atomistic representations of three
Appalachian coals of different ranks–high volatile bituminous, low volatile bituminous, and …

[HTML][HTML] Characterisation of Microstructure and Special Grain Boundaries in LPBF AlSi10Mg Alloy Subjected to the KoBo Extrusion Process

P Snopiński, K Matus - Symmetry, 2023 - mdpi.com
Grain boundary engineering (GBE) enhances the properties of metals by incorporating
specific grain boundaries, such as twin boundaries (TB). However, applying conventional …

Enhanced Electrical Properties and Impact Strength of Phenolic Formaldehyde Resin Using Silanized Graphene and Ionic Liquid

YC Li, SY Lee, H Wang, FL Jin, SJ Park - ACS omega, 2023 - ACS Publications
In this study, to improve the electrical properties and impact strength of phenolic
formaldehyde (PF) resin, PF-based composites were prepared by mixing graphene and the …

The influence of interface products on the mechanical and electrical properties of graphene aluminum composites

Y Luo, Y Huang, W Wang, S Yu, C Quanfang - Surfaces and Interfaces, 2024 - Elsevier
Graphene has been identified as an efficient filler to increase the strength and conductivity of
aluminum but the reaction between aluminum and graphene at elevated temperature is …

Multiple graphdiyne‐like chains self‐assemble into carbon nanotubes

R Wang, H Yang, D Zhang, X Sun… - Surface and …, 2024 - Wiley Online Library
The formation process of core–shell structure from multiple graphdiyne‐like chains and
carbon nanotube is investigated by a molecular dynamics simulation. Multiple graphdiyne …