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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31 citations
TL;DR: In this paper, the authors determined experimentally the partition coefficients for Ag and Pd as a function of the S concentration of the metallic liquid, where XS is the molar S content of the liquid.
Abstract: — Solid metal/liquid metal partition coefficients for Ag and Pd were determined experimentally as a function of the S concentration of the metallic liquid. Silver is incompatible in solid metal and strongly sensitive to the S content of the metallic liquid; partition coefficients for Ag decrease more than an order of magnitude with increasing S content of the metallic liquid and can be expressed as:
where k(Ag) is the molar solid metal/liquid metal partition coefficient and XS is the molar S content of the metallic liquid. The partition coefficient of Pd is less variable but changes from modestly incompatible to modestly compatible in solid metal with increasing S content of the metallic liquid:
With these new partition coefficients for Pd and a fractional crystallization model, Pd abundance trends recorded in iron meteorite groups are modeled successfully. Measured Ag distribution between troilite-rich nodules and adjacent metal in iron meteorites also agree well with experimental solid metal/liquid metal equilibrium values. However, observed Pd metal/nodule distributions do not agree with experimentally determined partition coefficients, which suggests a more complex history than simple solid metal/liquid metal equilibrium.
30 citations
TL;DR: In this article, two identical so-called Lorentz force flow meters are arranged in a row and separated by a defined distance, and each flow meter measures the force that is generated within the melt when the electrically conducting liquid metal passes the magnetic field.
Abstract: Time-of-flight Lorentz force velocimetry is a non-invasive electromagnetic measurement technique that can be used to determine both the flow rate and/or the local velocities in electrically conducting fluids like liquid metals. Using this technique, two identical so-called Lorentz force flow meters—each consisting of a permanent magnet system and an attached digital force sensor—are arranged in a row and separated by a defined distance. Each flow meter measures the Lorentz force that is generated within the melt when the electrically conducting liquid metal passes the magnetic field. This time-of-flight technique can be exploited for the flow measurement by purely cross-correlating the two force signals. Hence, the measurement becomes independent of any fluid properties and magnetic field parameters. We present results of two model experiments that demonstrate that time-of-flight Lorentz force velocimetry is feasible for non-contact measurement of both global flow rates and local surface velocity in turbulent liquid metal flow. In these experiments, we use the low-melting eutectic alloy Ga68In20Sn12 as a test melt. Moreover, to support these experimental findings, we present results of numerical simulations using the commercial codes FLUENT and MAXWELL. The numerical predictions are in good agreement with the experimental findings.
30 citations
Patent•
27 Aug 1985TL;DR: In this paper, a heat pipe stablized specimen container for irradiation of specimens at substantially constant temperature within a liquid metal cooled fast reactor comprises a heatpipe containing a vaporizable substance such as sodium, which is of double-walled construction with the gap filled with argon and at the top of the container a volume of argon is trapped within a cavity of the liquid metal level within the container in such a way that retention of the argon in this zone is not dependent on sealing welds in the structure.
Abstract: A heat pipe stablized specimen container for irradiation of specimens at substantially constant temperature within a liquid metal cooled fast reactor comprises a heat pipe containing a vaporizable substance such as sodium The container is of double-walled construction with the gap filled with argon and at top of the container a volume of argon is trapped within a cavity of the liquid metal level within the container in such a way that retention of argon in this zone is not dependent on sealing welds in the structure of the container, the argon blanket in this zone affording thermal insulation at the top of the container and also around part of the heat pipe, viz an adiabatic section of the latter The heat pipe includes three layer wick structure 84 comprising an outer relatively fine mesh layer, a coarse intermediate layer and a fine inner layer for promoting unimpeded return of condensate to the evaporation section of the heat pipe while enhancing heat transfer with the heat pipe wall and reducing entrainment of the condensate by the upwardly rising vapor
30 citations
Journal Article•
TL;DR: In this article, a facile route to prepare catalystically active materials from a galinstan liquid metal alloy is introduced, which results in the creation of solid In/Sn rich microspheres that show catalytic activity toward both potassium ferricyanide and 4-nitrophenol reduction.
Abstract: A facile route to prepare catalystically active materials from a galinstan liquid metal alloy is introduced. Sonicating liquid galinstan in alkaline solution or treating it in reducing media results in the creation of solid In/Sn rich microspheres that show catalytic activity toward both potassium ferricyanide and 4-nitrophenol reduction.
30 citations