Topic
Liquid metal
About: Liquid metal is a research topic. Over the lifetime, 6947 publications have been published within this topic receiving 77785 citations. The topic is also known as: liquid alloy & liquid metal alloy.
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TL;DR: In this article, a kinetic model describing nucleation, growth and degradation of double oxide layer on the surface of steels contacting with Pb-Bi melt saturated by oxygen was proposed.
101 citations
15 Nov 2008-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, the surface tension and its temperature coefficient for pure liquid metals are modeled through the excess surface enthalpy, excess surface entropy and molar surface area, assuming that the outer two surface layers of liquid metal are similar to the plane of fcc crystals.
Abstract: First the cohesive enthalpy of pure liquid metals is modeled, based on experimental critical temperatures of alkali metals. The cohesive enthalpies are scaled to the melting points of pure metals. The temperature coefficient of cohesive enthalpy is the heat capacity of the liquid metal. The surface tension and its temperature coefficient for pure liquid metals are modeled through the excess surface enthalpy, excess surface entropy and molar surface area supposing that the outer two surface layers of liquid metals are similar to the {1 1 1} plane of fcc crystals. The volumetric thermal expansion coefficient of liquid metals is scaled to the ratio of the heat capacity and cohesion enthalpy. From known values of melting point, heat capacity and molar volume the following calculated properties of liquid metals are tabulated: (i) cohesive enthalpy at melting point, (ii) cohesive energy of the solid metal at 0 K, (iii) critical temperature, (iv) surface tension at melting point, (v) volume thermal expansion coefficient, and (vi) temperature coefficient of surface tension. The present models are valid only for liquid metals of bcc, fcc or hcp crystals as only their structure and nature of bonding are similar enough to be treated together.
100 citations
TL;DR: In this paper, a large number of measurements, performed at IRSID under equilibrium conditions, are presented to measure the contact angle between a liquid slag drop and its liquid metal substrate, from which the interfacial tension can be derived.
100 citations
TL;DR: In this paper, a systematic study of soft composites with solid, liquid, and solid-liquid multiphase metal fillers dispersed in elastomers reveals key strategies to tune the thermal-mechanical response of soft materials.
Abstract: Soft materials with high thermal conductivity are critical for flexible electronics, energy storage and transfer, and human-interface devices and robotics. However, fundamental heat transport limitations in soft and deformable materials present significant challenges for achieving high thermal conductivity. Here, a systematic study of soft composites with solid, liquid, and solid-liquid multiphase metal fillers dispersed in elastomers reveals key strategies to tune the thermal-mechanical response of soft materials. Experiments supported by thermodynamic and kinetic modeling demonstrate that multiphase systems quickly form intermetallics that solidify and degrade mechanical response with modest gains in thermal conductivity. In contrast, liquid metal
99 citations
TL;DR: A Porous Liquid-metal enabled Ubiquitous Soft Material (PLUS-M) was fabricated through loading chemically reactive iron nanoparticles into eutectic gallium-indium alloys (EGaIn) whose porosity and shape could be easily regulated via remote control as mentioned in this paper.
Abstract: A Porous Liquid-metal enabled Ubiquitous Soft Material (PLUS-M) was fabricated through loading chemically reactive iron nanoparticles into eutectic gallium–indium alloys (EGaIn), whose porosity and shape could be easily regulated via remote control. Such a PLUS-M could expand to a surprisingly large magnitude in a short time, say seven times its original volume, and generate adjustable closed cell foams inside. Owing to this unique property, the density of the PLUS-M can be easily controlled, allowing the PLUS-M to float on water or even pull up underwater heavy objects above the surface when subjected to heating. What's more, this porous material can transform between liquid and solid states through controlling the oxidation level of gallium using methods like heating and stirring. The reversible transformation between the solid porous structure and liquid state could be achieved more than 100 times without obvious performance degradation.
99 citations