Article
Materials Science, Multidisciplinary
Yi Lv, Shilong Shen, Feng Liao, Perk Lin Chong
Summary: Through molecular dynamics simulation, it was found that the crystalline orientation of 3C-SiC has an influence on the wetting behavior of aluminum droplets. The density distribution of aluminum droplets on the (110) plane was stratified, while a relatively dense spindle region appeared on the (111) plane. The contact angles on these two crystal planes were analyzed and found to be 84.3° and 95.3°, respectively.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yangyang Wu, Konstantinos Lazaridis, Mikhail D. Krivilyov, Sinisa Dj. Mesarovic, Dusan P. Sekulic
Summary: Understanding the effect of gravity on the capillary flow of molten metal is crucial for repair and construction in space through brazing. Our experiments demonstrate the formation of a secondary liquid flux meniscus in contact between liquid Al-Si and an alumina substrate. The equilibrium contact angle is close to 180 degrees, while the apparent contact angle depends on the brazing liquid mass. Additionally, the surface profile of the molten braze alloy on inclined AA3003 changes from a non-symmetric shape to a more symmetric shape as the inclination angle decreases.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
F. Valenza, S. Gambaro, A. Bigos, P. Czaja, M. Janusz-Skuza, J. Wojewoda-Budka
Summary: In this study, the isothermal wetting of graphite by a molten Ti-based alloy was investigated to understand the interfacial reactivity. A contact angle of 15 degrees was achieved after 60 minutes of liquid-solid contact, indicating limited interfacial reactivity at the metal/graphite interface. The interfacial compounds grew with time and determined the wetting behavior of the liquid on the graphite substrate.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Guishi Cheng, Tengfei Zhao, Ying Zhao, Tao Jia, Yiheng Li, Xiaoqiang Wang, Changqing Dong
Summary: This study investigates the wetting and erosion behavior of alkaline slag on dense corundum refractories, as well as the chemical reactions and phase transitions involved.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Geological
Jialin Cheng, Gang Ma, Guike Zhang, Qiao Wang, Wei Zhou
Summary: The deterioration of rockfill materials affects the safety and workability of rockfill dams. This study investigates the mechanical property deterioration of rockfill materials under different wetting-drying cycles and wetting duration. It is found that cyclic wetting-drying results in more significant particle breakage and microstructural changes compared to wetting alone.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Chemistry, Physical
Quang K. Loi, Krittamet Phothong, Ryuto Yuasa, Toshihide Horikawa, D. D. Do
Summary: The adsorption mechanism of ethanol on graphite was comprehensively investigated using experimental measurements and computer simulation. The study highlights the unique interplay of clustering and molecular layering of ethanol. Ethanol exhibits intermediate characteristics between simple gases and water during adsorption. The mechanism of ethanol adsorption involves the formation and growth of discrete clusters, predominantly in the form of tetramers and pentamers, followed by the coalescence of growing clusters. The interplay of clustering and coalescence depends on temperature.
Article
Engineering, Manufacturing
Yangyang Wu, Konstantinos Lazaridis, Santhosh K. Muniyal Krishna, Cheng-Nien Yu, Mikhail D. Krivilyov, Sinisa Dj. Mesarovic, Dusan P. Sekulic
Summary: This study focuses on the comprehensive investigation of molten alloy capillary flow in the wetting/non-wetting wedge-tee configuration. The horizontal substrate made of Al2O3 exhibits non-wetting behavior, while the vertical Al-Mn alloy AA3003 shows wetting behavior. The braze alloy used is a combination of an aluminum-silicon alloy (Al-10Si) with potassium fluoro-aluminate flux embedded. The purpose of this wetting/non-wetting configuration is for brazing in repair and construction in space.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Engineering, Mechanical
Jitendra Kumar Katiyar, Abdul Samad Mohammed
Summary: The study demonstrates that the hybrid composite coating of SU-8 with talc and PFPE shows the best tribomechanical properties, with a significant increase in hardness and elastic modulus and a substantial decrease in friction coefficient. The addition of solid and liquid fillers improves the thermal stability of the coating.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
J. R. Selman
Summary: The development of Molten Carbonate Fuel Cell has gone through various critical points of diversification and convergence, resulting in a variety of designs and technologies. It is constantly influenced by the economics and politics of primary energy resources, yet its strong chemical fundamentals play a crucial role in shaping its future prospects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
Yichuan Zhang, Hanqi Zhang, Mingming Guo, Joel De Coninck, David Seveno
Summary: In this study, the reactive wetting dynamics of molten maleic anhydride-grafted polypropylene (MA-g-PP) liquids were modeled using molecular-kinetic theory (MKT). The dependencies of contact line friction (zeta) and viscosity (eta) were compared for reactive and nonreactive wetting polymer systems. The reactive wetting system showed a nonlinear relationship, unlike the linear dependencies observed in nonreactive wetting systems. The formation of a new interface and entanglements of polymer chains in the chemistry-affected regime contribute to the dependence of zeta on eta in the capillary regime.
Article
Electrochemistry
Jaeyoung Choi, Jiasheng Wang, Taketoshi Matsumoto
Summary: Composite electrodes using flake-shaped Si nanopowder from swarf treated as industrial waste and ultrathin graphite sheets demonstrate better cycling performance and delithiation capacities compared to C-coated Si electrodes, attributed to the formation of GS bridges and stable frameworks.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Huan Liu, Xu Zhang, Shiman He, Di He, Yang Shang, Haijun Yu
Summary: This review investigates the application of molten salt methodology in the synthesis of high-performance electrodes and electrolytes. The molten salt synthesis methods show unique advantages in adjusting the crystal structure and performance of electrode materials, and are expected to promote the development of rechargeable batteries.
Article
Materials Science, Ceramics
Ran Sui, Kaihui Tan, Qiaoli Lin, Kaibin Xie
Summary: The wetting behavior of Sn-8Zr, Sn-4Zr-4Ti, and Sn-8Ti on a substoichiometric YSZ(2-x) substrate was studied, with the Sn-4Zr-4Ti/YSZ(2-x) system showing the best final wettability.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Y. Li, S. H. Zhou, S. Wang, K. Q. Ma, Q. Z. Zhu
Summary: In this study, a novel ternary mixed molten salt of NaNO3-LiNO3-NaCl with high latent heat was prepared and studied to improve the thermal properties of nitrate in medium temperature thermal storage. Experimental results showed that compared with pure NaNO3, the phase change temperature of NaNO3-LiNO3-NaCl was reduced by 45.3 degrees C, and the latent heat of phase change was increased by 59.4 J/g. The addition of expanded graphite (EG) as the carrier adsorption material greatly improved the heat transfer capacity of the ternary molten salt, making NaNO3-LiNO3-NaCl/EG have broad application prospects in the field of medium and high temperature heat storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Hui-Zhen Shen, Yi Wang, Shuo-Ming Chen, Ping Shen
Summary: The wettability between molten aluminum and multi-walled carbon nanotubes is poor, with contact angles larger than 140 degrees and only a slow decrease over time. The chemical stability of carbon nanotubes in contact with aluminum depends on their structural integrity, with well-crystallized CNTs exhibiting higher stability. However, structurally defective CNTs are easily eroded by molten aluminum, leading to fragmentation and the formation of Al4C3 at the interfaces.
JOURNAL OF MATERIALS SCIENCE
(2021)