Article
Engineering, Aerospace
Yifan Sun, Hiroaki Muta, Yuji Ohishi
Summary: A novel drop-bounce method was developed in this study for measuring the surface tension of liquids within an aerodynamic levitation system. The method utilized Fourier transformation to calculate the surface tension data and significantly reduced the possibility of surface evaporation in a short experimental duration. The measured surface tension data were consistent with previous studies and exhibited a small deviation of 1.5% between the two fitted linear equations.
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Pradip Singha, Nhat-Khuong Nguyen, Jun Zhang, Nam-Trung Nguyen, Chin Hong Ooi
Summary: The study finds that manually prepared liquid marbles exhibit inconsistent surface tension values, while a systematic preparation method can improve consistency. However, high revolution speed can cause interface jamming and decrease consistency.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Mechanics
D. Zrnic, P. Berglez, G. Brenn
Summary: Theoretical investigation is conducted on the nonlinear axisymmetric shape oscillations of a Newtonian drop in a vacuum, revealing phenomena such as surface deformation, frequency decrease, and quasi-periodicity of motion. Viscosity is found to dampen nonlinear behavior and enhance the coupling of different oscillation modes.
Article
Chemistry, Physical
R. S. P. Flood, H. Henein
Summary: This study measured the viscosity, surface tension, and density of liquid Al and Al-22.5wt.%Cu using the discharge crucible method. It was found that the density was significantly lower than expected, possibly due to wetting of Al or Al-Cu at the orifice impacting the flow rate. Further research will focus on extending the discharge crucible model to account for wetting at high temperatures.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Multidisciplinary
Jiahe Liao, Carmel Majidi, Metin Sitti
Summary: Liquid metal actuators offer great opportunities for actuation based on surface tension modulation due to their unique combination of electrical and mechanical properties. This review summarizes the principles and performance of liquid metal actuators and provides a roadmap for future research directions.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Ulrike Paap, Bernd Kress, Hans-Peter Steinrueck, Florian Maier
Summary: In this study, the surface and interface tension measurements of two ionic liquids were reported. A newly developed experimental setup was used to perform the measurements under high vacuum conditions. The results showed that the surface tension varied under different conditions, which is important for understanding the microscopic parameters determining surface tension and for benchmarking theoretical calculations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Sheng Lin, Long Zhang, Liang Cong
Summary: This study proposes a method for direct ink write printing of gallium-indium (Ga-In) alloys using micro-vibration-driven extrusion. Micro-vibration reduces the surface tension of Ga-In alloy droplets and avoids the appearance of random droplets during printing. By optimizing suitable micro-vibration parameters, the growth process of droplets is significantly slowed down, allowing for high moldability and improved printability of Ga-In alloy droplets.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Chemical
Yingchun Wu, Qimeng Lv, Xuecheng Wu, Xinhao Wang, Linghong Chen, Kefa Cen
Summary: The oscillation of micron-sized liquid droplets can be measured using time-resolved rainbow refractometry to determine surface tension and viscosity. The method shows potential for improving experimental validation and reducing measurement errors, with relative errors of less than 5% for surface tension and 10% for viscosity.
Article
Chemistry, Multidisciplinary
Delu Geng, Na Yan, Wenjun Xie, Yongjun Lu, Bingbo Wei
Summary: This study comprehensively explores the solidification kinetics of liquid alloys using acoustic levitation technology. The research reveals the effects of acoustic levitation on the fluid dynamics and solidification mechanisms, including liquid flow, undercooling, phase separation, and crystal nucleation and growth.
ADVANCED MATERIALS
(2022)
Article
Computer Science, Interdisciplinary Applications
Takuya Matsunaga, Axel Sodersten, Seiichi Koshizuka, Tomoyuki Hosaka, Eiji Ishii
Summary: This study extends a numerical method for accurately simulating axisymmetric free-surface flows using the moving surface mesh particle method, with a new algorithm developed to address non-uniform particle distributions and topological changes.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Physics, Fluids & Plasmas
Gregory Kozyreff, Benny Davidovitch, S. Ganga Prasath, Guillaume Palumbo, Fabian Brau
Summary: Recent studies have focused on the capillary interaction between a liquid drop and a thin solid sheet of low bending stiffness. Wetting behavior is discussed as a function of applied tension using numerical, variational, and asymptotic techniques. Complete wetting is possible for wettable surfaces with a defined Young's contact angle below a critical applied tension. A vesicle forms in the sheet at intermediate tensions, enclosing most of the fluid, and the shape of the drop is determined by the ratio of area to a tension-dependent bendocapillary length.
Review
Materials Science, Multidisciplinary
Zixu Yang, Dan Yang, Xizheng Zhao, Qinyi Zhao, Ming Zhu, Yan Liu, Yu Wang, Weihong Lu, Dianpeng Qi
Summary: Stretchable electronics is a type of electronic product that can conform with tissues, and liquid metals are excellent materials for this field due to their stretchability and conductivity. However, the high surface tension of liquid metals at room temperature poses a major obstacle for their development. This review focuses on overcoming this challenge and discusses various methods of using liquid metals to fabricate stretchable electronic devices based on these principles. The potential applications and existing challenges and opportunities of liquid metals in this field are also discussed.
SCIENCE CHINA-MATERIALS
(2022)
Article
Polymer Science
Hongwei Li, Martin Fauquignon, Marie Haddou, Christophe Schatz, Jean-Paul Chapel
Summary: The study systematically investigated the surface activity of polyelectrolyte complex (PECs) suspensions as a function of the molar charge ratio Z. It was found that the surface tension of PECs decreases as the system approaches charge stoichiometry. The behavior of complex systems at stoichiometry is informative about the physical nature of the complexes.
Article
Chemistry, Physical
Tomasz Gancarz
Summary: This study determined the thermophysical properties of Ga-Pb alloys and provides valuable references for the development of energy storage materials.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Ruohan Yu, Jialuo Han, Yuan Chi, Jiewei Zheng, Richard Fuchs, Mohammad B. Ghasemian, Md. Arifur Rahim, Shi-Yang Tang, Guangzhao Mao, Kourosh Kalantar-Zadeh, Jianbo Tang
Summary: Exploring the influence of minor constituents on liquid alloys, this study shows that the presence of solute metals in liquid gallium can significantly affect their electrocapillarity and electrochemistry. The formation of different fractal modes in liquid alloy droplets under controlled voltage and alkaline solution conditions is investigated, with distinct non-branched droplets, unstable fractals, and stable fractals observed. Surface tension measurements, cycle voltammetry, and surface compositional characterizations provide evidence that minor alloy components drastically alter the surface tension, electrochemical oxidation, and oxide dissolution processes. These findings offer promising opportunities for harnessing the tunability and functionality of liquid metals.
ADVANCED FUNCTIONAL MATERIALS
(2023)