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, an analysis of thermoelectric magnetohydrodynamic (TEMHD) forces caused by temperature-gradients in the liquid-container system itself in addition to scrape-off-layer currents interacting with the PFC from a diverted plasma was carried out.
24 citations
TL;DR: In this article, a comprehensive overview regarding typical theoretical strategies on analyzing the melting points of room temperature liquid metal is presented. And applications associated with the characteristic of low melting point of LM are discussed.
Abstract: The room temperature liquid metal (LM) is recently emerging as a new class of versatile materials with fascinating characteristics mostly originated from its simultaneous metallic and liquid natures. The melting point is a typical parameter to describe the peculiarity of LM, and a pivotal factor to consider concerning its practical applications such as phase change materials (PCMs) and advanced thermal management. Therefore, the theoretical exploration into the melting point of LM is an essential issue, which can be of special value for the design of new LM materials with desired properties. So far, some available strategies such as molecular dynamics (MD) simulation and classical thermodynamic theory have been applied to perform correlative analysis. This paper is primarily dedicated to performing a comprehensive overview regarding typical theoretical strategies on analyzing the melting points. It, then, presents evaluations on several factors like components, pressure, size and supercooling that may be critical for melting processes of liquid metal. After that, it discusses applications associated with the characteristic of low melting points of LM. It is expected that a great many fundamental and practical works are to be conducted in the coming future.
24 citations
TL;DR: In this paper, a simulation of in-blanket events was performed by injecting subcooled water under high pressure into a stagnant pool of liquid Li 17 Pb 83, where reaction kinetics data required for quantification of the chemical reaction have been measured in a separate facility.
24 citations
TL;DR: In this paper, a fully dielectric packaged liquid patch antenna based on liquid metal alloy is presented, which is realized by a three-dimensional printing technique, alleviating assembly tolerance and uncertainties from a printed-circuit-board approach, which would degrade an antenna performance.
Abstract: A fully dielectric packaged liquid patch antenna based on liquid metal alloy is presented. In this letter, there are two hollow cavities embedded in a dielectric box, including a rectangular cavity placed at the upper portion acting as the radiating element, and a nonplanar cavity with a central groove under the radiating element serving as the ground plane. The antenna is realized by a three-dimensional printing technique, alleviating assembly tolerance, and uncertainties from a printed-circuit-board approach, which would degrade an antenna performance. The radiating element and the ground plane are fully metallized by filling liquid metal alloy. Unlike traditional liquid antennas, the liquid packaging antenna is completely metallized by conductive liquids, which does not contain any solid metals. The proposed antenna is designed to operate at 5.2 GHz. Results show that the proposed liquid patch antenna produces a satisfactory impedance matching, and a good agreement between simulation and measurement in terms of radiation characteristics is achieved at the desired frequency.
24 citations
01 Jan 2011
TL;DR: The StarJet dispenser as discussed by the authors utilizes a star-shaped nozzle geometry that stabilizes liquid plugs in its center by means of capillary forces, and can be operated in two modes: either continuous droplet dis-pensing mode or drop on demand (DoD) mode.
Abstract: This study presents a new, simple and robust, pneumatically actuated method for the generation of liquid metal micro droplets in the nano- to picoliter range. The so-called StarJet dispenser utilizes a star-shaped nozzle geometry that stabilizes liquid plugs in its center by means of capillary forces. Single droplets of the liquid metal can be pneumatically generated by the interaction of the sheathing gas flow in the outer grooves of the nozzle and the liquid metal. For experimental validation, a print head was build consisting of silicon chips with a star-shaped nozzle geometry and a heated actuator (up to 280C). The silicon chips are fabricated by Deep Reactive Ion Etching (DRIE). Chip designs with different star-shaped geometries were able to generate droplets with diameters in the range of the corresponding nozzle diameters. The StarJet can be operated in two modes: Either continuous droplet dis- pensing mode or drop on demand (DoD) mode. The continuous droplet generation mode for a nozzle with 183 lm diameter shows tear-off frequencies between 25 and 120 Hz, while droplet diameters remain constant at 210 lm for each pressure level. Metal columns were printed with a thickness of 0.5-1.0 mm and 30 mm height (aspect ratio (30), to demonstrate the directional stability of droplet ejection and its potential as a suitable tool for direct prototyping of the metal microstructures.
24 citations