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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, the authors developed stable corrosion-resistant electrical insulator coatings at the liquid-metal-structural-material interface, with emphasis on electrically insulating coatings that prevent adverse MHD-generated currents from passing through the structural walls.
37 citations
TL;DR: In this article, the radial distribution function is used to establish a corresponding states correlation of the configurational heat capacities of six low-melting metals, and it is suggested that this correlation may be used to estimate the configural contribution to the specific heats of other liquid metals.
37 citations
TL;DR: In this paper, a liquid metal-based microheater with polydimethylsiloxane (PDMS) microfluidic chips bonded to either silicon or PDMS substrates was designed, and both nonpressurized and pressurized contacts between the power supply and the liquid metal wires were investigated.
Abstract: This paper reports design, fabrication, and characterization of liquid metal-based microheaters. Liquid metal microheaters designed via finite element simulation were fabricated by simply injecting eutectic gallium indium into polydimethylsiloxane (PDMS) microfluidic chips bonded to either silicon or PDMS substrates. Considering the net positive volume change of the microheater upon heating, both nonpressurized and pressurized contacts between the power supply and the liquid metal wires were investigated. The pressurized contact was found to provide more reliable electrical connection, thus more stable long-term operation than the nonpressurized contact. Due to higher thermal conductivity, liquid metal microheaters with silicon substrate exhibit better temperature uniformity than ones with PDMS substrate. However, liquid metal microheaters with PDMS substrate are flexible and deformable, thus more suitable than ones with silicon substrate when microheaters should be applied to nonflat objects.
36 citations
TL;DR: In this paper, the phase composition of cladding layer on diamond particles is analyzed by transmission electron microscopy combined with focused ion beam technology to measure the thermal conductivity of gallium-based thermal interface materials (TIMs).
Abstract: The focus of this paper is how to efficiently enhance the thermal conductance of gallium-based thermal interface materials (TIMs) and greatly avoid the excessive consumption of liquid metal during its application. Highly heat-conducting diamond particles are selected as the reinforced additives for pure gallium on account of their mature technology of surface metallization. To improve the interface combination status between those inorganic fillers and liquid metal matrix, chromium transition layer is deposited on the surfaces of diamond particles by magnetron sputtering method. The phase composition of cladding layer on diamond particles is analyzed by transmission electron microscopy combined with focused ion beam technology. To measure the thermal conductivity of gallium-based TIM filled with chromium-coated diamond particles, a specific three-layer structure sample is made for laser flash analysis and the corresponding theoretical fitting model is deduced subsequently. After performing iterative solution through programming, our results present that 47 wt% addition of chromium-coated diamond particles can dramatically increase the thermal conductivity of pure gallium from 29.3 to 112.5 W/(m·K) at room temperature. And fortunately, it has not yet been observed that the chromium coating is over consumed by liquid metal or the thermal conductivity of composite seriously degrades after thermal aging treatment at 80 °C for 192 h, strongly indicating that chromium could be used as the diffusion barrier layer for heat-conducting particles and the metal substrates to maintain long-term reliable service of gallium-based TIMs.
36 citations
TL;DR: In this paper, the effects on core characteristics of using two different types of Pu-based metallic alloy fuels in the gallium-cooled fast nuclear core were examined, and the aim was to evaluate reactor core neutronics and safety characteristics demonstrating a feasibility of the reactor system.
36 citations