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 paper, the roll of phase was investigated in zinc-cadmium alloys and polycrystalline aluminum 2.5 w/o-zinc 5.3 w/O-magnesium alloys.
164 citations
TL;DR: Water can provide an interfacial slip layer between EGaIn and other surfaces, which allows the metal to flow smoothly through capillaries and across surfaces without sticking, and provides new opportunities to control and actuate liquid metal plugs in microchannels.
Abstract: Eutectic gallium indium (EGaIn) is a promising liquid metal for a variety of electrical and optical applications that take advantage of its soft and fluid properties. The presence of a rapidly forming oxide skin on the surface of the metal causes it to stick to many surfaces, which limits the ability to easily reconfigure its shape on demand. This paper shows that water can provide an interfacial slip layer between EGaIn and other surfaces, which allows the metal to flow smoothly through capillaries and across surfaces without sticking. Rheological and surface characterization shows that the presence of water also changes the chemical composition of the oxide skin and weakens its mechanical strength, although not enough to allow the metal to flow freely in microchannels without the slip layer. The slip layer provides new opportunities to control and actuate liquid metal plugs in microchannels—including the use of continuous electrowetting—enabling new possibilities for shape reconfigurable electronics, se...
158 citations
TL;DR: In this article, the surface of tubes exposed to 600°C and to different flow velocities are coated with a FeCrAlY alloy to examine its suitability as a protective coating for high loaded parts like cladding tubes.
157 citations
15 Feb 2001-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: Based on the extensive experience in injection molding of polymeric materials, a twin-screw rheomoulding process has been developed in this paper for near net-shape production of engineering components.
Abstract: Based on the extensive experience in injection moulding of polymeric materials, a twin-screw rheomoulding process has been developed in our laboratory for near net-shape production of engineering components. The rheomoulding equipment consists of a liquid metal feeder, a twin-screw extruder with closely intermeshing, self-wiping and co-rotating screws, a shot assembly and a central control unit. The fluid flow in the twin-screw rheomoulding process is characterised by high shear rate and high intensity of turbulence. The experimental results of rheomoulded Sn–15wt.% Pb and Mg–30wt.% Zn alloys have demonstrated that the twin-screw rheomoulding process is capable of producing small and near mono-sized solid particles distributed uniformly in a fine-grained eutectic matrix. Compared with other existing semi-solid metal processing techniques, the twin-screw rheomoulding process has the following advantages: small and spherical solid particles of near mono-size, chemical and microstructural uniformity throughout the component, accurate control over a large range of solid volume fractions, lower overall component cost due to low cost of feedstock materials, and shorter cycle time.
157 citations
TL;DR: In this article, the authors proposed the concept of the nano liquid-metal fluid, aiming to establish an engineering route to make the highest conductive coolant, using several widely accepted theoretical models for characterizing the nano fluid, the thermal conductivity enhancement of the liquid metal fluid due to addition of more conductive nano particles was predicted.
155 citations