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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Patent•
16 Mar 1972
TL;DR: In this article, an immersion pump for liquid metals, operating by conduction, consisting of one or two magnetic circuits, a conduction loop made of liquid metal and of two electrodes limiting the liquid metal duct in the active zone, is described.
Abstract: Immersion pump having slight bulk, for liquid metals, operating by conduction, consisting of one or two magnetic circuits, a conduction loop made of liquid metal and of two electrodes limiting the liquid metal duct in the active zone. A refractory material is cast round the components of the pump, and protects them against the corrosive action of the liquid metal. The part which is not immersed comprising the induction windings of the magnetic circuits is protected by a cast aluminum steel housing.
56 citations
TL;DR: In this article, a comprehensive computational fluid dynamics model is described which predicts the flow and temperature distributions of liquid iron in blast furnace hearth, and the temperature distribution in the refractories.
Abstract: An in-depth understanding of the liquid metal flow and heat transfer is essential in order to identify the key mechanisms for the hearth erosion of a blast furnace. In this study, a comprehensive computational fluid dynamics model is described which predicts the flow and temperature distributions of liquid iron in blast furnace hearth, and the temperature distribution in the refractories. The new model addresses conjugate heat transfer, natural convection and turbulent flow through porous media, with its main features including improved transport equations (a modified k–e turbulence model and thermal dispersion term) and a three-dimensional, high-resolution grid. The new turbulence model and terms take account of the effect of microscopic flows around coke particles and allow unified treatment of coke bed and coke-free layer. The predicted results show a well-organized flow pattern: two large-scale recirculation zones are separated vertically at the taphole level. This flow pattern controls the temperature distribution in the liquid phase, so that the temperature remains nearly uniform in the upper zone, but changes mainly across the lower zone. The effects of several factors were examined, such as cases comparing fluid buoyancy with constant fluid density as well as the shape and position of the coke free zone (i.e. based on reported dissection studies). Natural convection is found to be most important for the liquid metal flow patterns observed. Comparison with the plant data shows that the refractory pad temperature is under-predicted when assuming intact hearth lining. The pad temperature is very sensitive to the erosion of protection layer in the hearth lining.
56 citations
TL;DR: In this article, the authors report the results of a series of deformation experiments on a sample of partially molten Kernouve H6 chondrite (T ǫ = 900-1050 °C) aimed at determining the siderophile concentrations and associated partition coefficients in both Fe-S−Ni−O quench and Fe-Ni metal as a function of degree of melting, and provide insight into the melt segregation mechanism(s).
56 citations
TL;DR: In this paper, the Q-switched laser sampling of copper-zinc alloys has been investigated, where both vapor and liquid metal were produced in the sampling process, and it was demonstrated that the melting step was thermally equilibrated.
Abstract: A more detailed knowledge than is presently available of laser beam–target material interactions is required if pulsed lasers are to be used with maximum effectiveness as analytical sampling devices. To this end. the Q-switched laser sampling of copper–zinc alloys has been investigated. Both vapor and liquid metal were produced in the sampling process. Observations of the crater dimensions and appearance showed that ablation of molten metal was the predominant material removal mode. It was demonstrated that the melting step was thermally equilibrated. Vaporization proceeded via a sequence of events wherein the vapor composition was independent of laser parameters, and could be predicted from the liquid-solid equilibrium diagram for the copper–zinc system. The effect of laser sampling on a subsequent chemical analysis is illustrated.
55 citations
TL;DR: In this article, the entropy analysis of a radioactive rotating nano fluid with prescribed thermal slip at the horizontal surface was studied and the Bejan number is plotted to present a comparative analysis of entropy generation due to heat transfer and fluid friction.
55 citations