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•
26 Nov 2014
TL;DR: In this article, a liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test is presented. But the experimental system is not suitable for large-scale applications, such as nuclear power stations.
Abstract: The invention discloses a liquid metal cooling reactor experimental system capable of realizing critical and subcritical running test. The liquid metal cooling reactor experimental system consists of a safety vessel (1), a main vessel (2), a reactor inner supporting structure (3), a reactor core (4), a central measuring column (5), a main heat exchanger (6), a reloading mechanism (7), a reactor top cover (8), a control bar drive mechanism (9) and a neutron source (10); when the critical running test is performed, the neutron source (10) adopts a californium-252 neutron source or a Be-Am neutron source; when the subcritical running test is performed, the neutron source (10) adopts a spallation neutron source or a deuterium tritium neutron source, an isotopic neutron source and a fuel component in the middle part of the reactor core are replaced by an accelerator neutron source according to the real requirement of the spallation neutron source, and the reactor can have the subcritical running test. The reactor experimental system is naturally and circularly cooled by adopting liquid lead-bismuth or lead, so that the usability of the reactor can be improved, the experimental cost can be reduced, and the multifunctional reactor experimental system characteristics can be achieved.
22 citations
Patent•
24 Feb 1994
TL;DR: In this paper, the conductive fluid of liquid gallium or gallium alloy (10) is used to prevent wetting of the interior walls of the switch or sensor housing (12), and an inert gas, such as argon, helium or hydrogen may fill the remainder of the housing after the gallium/gallium alloy has been dispensed.
Abstract: Liquid gallium or gallium alloy (10) is utilized as the conductive fluid in a switch or sensor housing (12). In order to prevent wetting of the interior walls of the switch or sensor housing (12), the liquid gallium or gallium alloy (10) is either free of metal oxides or has only very low quantities of metal oxides. The gallium or gallium alloy (10) may be kept free of oxides by treating it with an acid, a base or a reducing agent and may be prevented from forming oxides during and after dispensing by removing air from the switch or sensor housing (12). An inert gas, such as argon, helium or hydrogen may fill the remainder of the housing (12) after the gallium or gallium alloy (10) has been dispensed. The gallium alloy may comprise indium, tin and/or bismuth.
22 citations
TL;DR: In this article, the authors present a comprehensive analysis of heat transfer, entropy generation and performance evaluation of liquid metal nanofluid laminar flow in a circular tube subject to constant wall heat flux, in which the two-phase mixture model is adopted to simulate the nanoflid flow, and three types of nanoparticles (namely Alumina (Al2O3), Diamond (Diam), Carbon nanotubes (CNT)) is considered.
22 citations
TL;DR: In this article, a model is developed that describes the optimal processing parameters for directional solidification using liquid metal cooling (LMC) using a sample with a flat geometry and, as a first approximation, can be used to treat the flat sections of a turbine blade.
Abstract: In what follows, a model is developed that describes the optimal processing parameters for directional solidification using liquid metal cooling (LMC). The model considers a sample with a flat geometry and, as a first approximation, can be used to treat the flat sections of a turbine blade. The model predicts (1) the optimal withdrawal rate of the casting from the hot zone, (2) the temperature gradient in the liquid at the solidification interface, and (3) the temperature profile along the length of the casting. The model is then used to perform a sensitivity analysis of the LMC process. Cooling bath temperature, baffle thickness, shell thickness, and shell thermal conductivity are shown to have a strong influence on system performance.
22 citations
TL;DR: In this article, the self-actuation of liquid metal spheres in NaOH solution, including spreading, oscillating and stretching, induced by graphite alone was demonstrated, and the surface tension gradient on the sphere induced by the graphite/liquid metal galvanic cell was responsible for this deformation.
Abstract: Self-actuation phenomena of liquid metal spheres in NaOH solution, including spreading, oscillating and stretching, induced by graphite alone were demonstrated for the first time. A liquid metal sphere could spontaneously spread on the surface of the graphite once immersed in the NaOH solution. The surface tension gradient on the sphere induced by the graphite/liquid metal galvanic cell was responsible for this deformation. When a liquid metal sphere was leaned against the side of a piece of graphite, it could oscillate periodically. As the sphere contacted the graphite, it rapidly collapsed, while the curvature radius of the sphere at the contact point decreased. Also, as the capillary force imposed on the sphere was larger than the friction force, the sphere recovered its original spherical shape. The surface tension of the liquid metal sphere acted as the restoring force of the oscillatory movement. Further, a phenomenon of resonance could be observed when two spheres were laid respectively on the top and the side of the graphite. The vibration of the top sphere was induced by the vibration of the side sphere. This finding provides a novel enhancement for the fabrication of future liquid metal beating heart systems and graphite/liquid metal-based batteries or machines.
22 citations