Article
Mechanics
Ivan V. Vorontsov, Sergey A. Chivilikhin, Igor Y. Popov
Summary: A molecular dynamics-based model is proposed for describing the shape of nanobubbles on the liquid-solid interface, with results in good agreement with experimental AFM measurements. The study investigates nanobubbles in water and in oil, considering their evolution, movement, and interactions. Furthermore, it explores the impact of various external factors and internal characteristics on the evolution and behavior of nanobubbles.
Article
Materials Science, Multidisciplinary
Yange Zhang, Jingdan Zhang, Xiangyan Li, Yichun Xu, Xuebang Wu, Junfeng Yang, Xianping Wang
Summary: The interaction between liquid Pb and irradiation defects at the structural materials/liquid metal interface plays a crucial role in understanding the irradiation-enhanced corrosion of structural materials in nuclear systems. Molecular dynamics simulations were employed to investigate the primary damage on iron surfaces and the characteristics of the irradiated Fe/Pb solid-liquid interfaces. It was found that vacancy clusters are dominant on the surfaces, with vacancy loops appearing more frequently under Fe(110) surface compared to Fe(100) surface under Fe particle irradiation. Liquid Pb can facilitate the migration of irradiation damages, particularly vacancies, to the surface, which in turn promotes the corrosion of Pb on the Fe surface by forming bonds with Pb atoms. The transport properties of Pb atoms near the interface exhibit anisotropy due to the different structural symmetry of the Fe/Pb interfaces.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Optics
Fangyuan Liang, Jingge Wang, Xiaoqing Fu, Hui Wang
Summary: This study investigates the impact of laser focusing on the characteristics of laser-induced plasma. By comparing plasma images and spectral emission spectra obtained at different defocusing distances, the effect of F-number of focusing lenses on the plasma on steel alloy is studied. The results demonstrate that the defocusing distance influences the plasma morphology and spectral line intensity. The optimal defocusing distance shows a correlation with the F-number.
Article
Thermodynamics
Rupak Kumar, Arup Kumar Das
Summary: The numerical study focused on the boiling of LN2 on solid and liquid surfaces, discussing flow instabilities, bubble characteristics, and heat flux. The research also investigated the asymmetry in bubble growth and departure time during multi-mode boiling. Additionally, the study compared vapor film thickness and evaporation rate to understand the impact of film collapse during boiling on liquid surfaces.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Physics, Multidisciplinary
Chenhao Li, Hongtao Liang, Yang Yang, Zhiyong Yu, Xin Zhang, Xiangming Ma, Wenliang Lu, Zhenrong Sun, Ya Cheng
Summary: Through two-temperature model molecular-dynamics simulations, ultrafast modulation of the pure molten metal surface stress fields under single femtosecond laser pulse irradiation is predicted. The dynamic surface tensions are sharply modulated within picoseconds after irradiation, due to the development of nanometer scale non-hydrostatic regime behind the liquid surfaces' exterior atomic layer.
CHINESE PHYSICS LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Hongyan Zhao, Xinmao Lv, Yang-Gang Wang
Summary: The rational design of electrocatalysis is crucial for addressing energy and environmental crises. Understanding the complex electrochemical interface, including factors like electrode potential and H-bond network, is essential for optimizing electrocatalytic activity and selectivity. This review explores recent theoretical advances in modeling realistic electrocatalytic processes at complex interfaces and highlights the challenges and fundamental problems in this field. The significance of including explicit solvation and electrode potential, as well as strategies for designing highly efficient electrocatalysts, is discussed. The structure-activity relationships and dynamic responses of electrocatalysts to the environment are crucial for understanding complex interfaces and improving electrocatalytic activity.
Article
Physics, Applied
H. P. Martins, G. Conti, I Cordova, L. Falling, H. Kersell, F. Salmassi, E. Gullikson, I Vishik, C. Baeumer, P. Naulleau, C. M. Schneider, S. Nemsak
Summary: This work introduces the practical aspects of using near total reflection (NTR) in ambient pressure XPS and applies this technique to study chemical concentration gradients in a substrate/photoresist system. Experimental data and x-ray optical simulations quantitatively probe the photoresist and interface with depth accuracy of about 1 nm. The study confirms that NTR XPS is a suitable method to extract information from buried interfaces with highest depth-resolution and can address research questions regarding concentration profiles, electrical gradients, and charge transfer phenomena.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Applied
Navdeep S. S. Dhillon, Dilipkumar Choudhary, Jayden Maree, Victor Inhelder, Jazmin Guadarrama
Summary: Nucleate boiling is a crucial phenomenon in various industries, and improving its performance parameters has practical implications for power plants and electronics thermal management. However, studying this complex phenomenon has been challenging, hindering progress in boiling heat transfer enhancement. This paper introduces a laser-based technique for controlled bubble generation, allowing accurate phenomenological studies of the boiling process. The laser-nucleated controlled single bubble closely simulates naturally occurring bubbles in nucleate pool boiling, unlike existing artificial bubble generation approaches.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Condensed Matter
Jie Wu, Zhiyuan Rui, Zhongyu Wang, Yun Dong
Summary: In this paper, the adhesion problem between liquid aluminum and solid surfaces is investigated using molecular dynamic simulations. The results show that the solid aluminum surface is aluminophilic while the solid silicon surface is aluminophobic. The variation of the interfacial potential explains the changes in adhesion force.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Thermodynamics
Yoshitaka Ueki, Satoshi Matsuo, Masahiko Shibahara
Summary: This study investigated the influence of nanotextured surface geometry on the interfacial thermal resistance (ITR) between hydrophilic solid walls and water/ice using molecular dynamics simulations. The results showed that narrower nanostructure gaps led to decreased ITR. Particularly, when H2O molecules were in the crystal form, the local ITR significantly increased.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Review
Materials Science, Multidisciplinary
S. Osali, Y. Ghiyasi, H. Esfahani, R. Jose, S. Ramakrishna
Summary: A membrane is a thin layer used for separation and purification processes, and nanomembranes made from nanofibers have the advantage of small size and improved efficiency. Electrospinning is a viable method for preparing nanomembranes. This review explores techniques to modify electrospun nanomembranes for process improvement and their potential applications, highlighting areas requiring further innovation.
Article
Chemistry, Physical
Inseok Chae, Andy Han, Jagan Sundaram, Seung-Wuk Lee
Summary: This study investigates the molecular interactions of therapeutic proteins at a liquid-glass interface and finds that reducing electrostatic attractions in the solution can significantly reduce the aggregation and adsorption of the proteins. The study also shows that PEGylation enhances the stability of the therapeutic proteins at the interface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jincheng Tong, Amadou Doumbia, Raja U. Khan, Aiman Rahmanudin, Michael L. Turner, Cinzia Casiraghi
Summary: Quantitative measurements of molecular dynamics at the solid-liquid interface are crucial. However, the commonly used analytical techniques have limited sensitivity. By using electrolyte-gated organic field-effect transistors (EGOFETs), it is possible to monitor the crystallization process in real-time and quantify changes in solute concentration and molecular transport rate at the solid-liquid interface.
Article
Multidisciplinary Sciences
Cao Thang Nguyen, Duc Tam Ho, Sung Youb Kim
Summary: Free energies of a solid surface and a solid-liquid interface play significant roles in thermodynamics. Computational methods offer effective alternatives for calculating these properties. This study presents an enhanced sampling approach based on the logarithmic mean force dynamics method for calculating the free energy at different temperatures. The method is robust and readily applicable in calculating the free energies of solid-liquid interfaces and solid surfaces.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Chemistry, Physical
Tianwei He, Kai S. Exner
Summary: This article discusses the common challenges in modeling nanostructured catalysts for energy conversion and storage applications and introduces machine learning techniques as a potential solution to overcome these challenges.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Rie Tanabe, Thao T. P. Nguyen, Takahiro Sugiura, Yoshiro Ito
APPLIED SURFACE SCIENCE
(2015)
Article
Optics
Thao T. P. Nguyen, Rie Tanabe, Yoshiro Ito
OPTICS AND LASER TECHNOLOGY
(2018)
Article
Materials Science, Multidisciplinary
Thao Thi Phuong Nguyen, Rie Tanabe, Yoshiro Ito
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2014)
Article
Physics, Applied
T. T. P. Nguyen, R. Tanabe, Y. Ito
APPLIED PHYSICS LETTERS
(2013)
Article
Optics
Thao Thi Phuong Nguyen, Rie Tanabe-Yamagishi, Yoshiro Ito
OPTICS AND LASERS IN ENGINEERING
(2020)
Article
Physics, Applied
Thao Thi Phuong Nguyen, Rie Tanabe-Yamagishi, Yoshiro Ito
Summary: The study focused on the dynamics of nanosecond-pulsed laser ablation of graphite-coated and black-paint-coated targets in liquids, presenting the first demonstration of a planar head wave almost parallel to the target surface. A planar stress wave that distorted the typical stress distribution induced by pulsed laser ablation in liquid was observed in the solid, traveling at the acoustic speed and becoming stronger with increased number of shots.
APPLIED PHYSICS EXPRESS
(2021)
Article
Physics, Applied
Thao Thi Phuong Nguyen, Rie Tanabe-Yamagishi, Yoshiro Ito
Summary: This study investigated laser-induced excitation of elastic surface waves at free surface and soft solid-liquid interface using a custom-designed photoelasticity imaging technique. The results revealed the existence of unique surface wave phenomena at both interfaces.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Multidisciplinary
Thao Thi Phuong Nguyen, Rie Tanabe-Yamagishi, Yoshiro Ito
Summary: It is commonly believed that plasma pressure impulse is the sole mechanism for laser-induced bulk and elastic surface waves. However, we have observed a dual mechanism where the laser-induced shockwave impacts the target, generating secondary bulk and surface elastic waves several tens of nanoseconds after the primary ones caused by the plasma pressure impulse. We suggest that the overlapping of the two wave groups can lead to additional frequency components that should be taken into account in research and applications involving elastic waves generated by strong laser ablation.
