Thermoelectric magnetic force acting on the solid during directional solidification under a static magnetic field
作者： J Wang , Y Fautrelle , ZM Ren , H Nguyen-Thi , G Salloum Abou Jaoude
DOI: 10.1063/1.4772510
关键词: Thermoelectric effect 、 Magnetic field 、 Condensed matter physics 、 Synchrotron 、 Magnetostatics 、 Materials science 、 Particle 、 Velocity measurement 、 Current (fluid) 、 Directional solidification
摘要: Thermoelectric magnetic (TEM) flows in melts, which are generated by TEM forces in liquids, were uncovered by the shape evolution of the planar solid/liquid interface during directional solidification. The solid/liquid interface developing from an initially tilted shape to a nearly flat one has been in situ and real-time observed by means of synchrotron X-ray radiography. The corresponding numerical 3D simulations and velocity measurements of flows in the melt confirm that TEM flows exist and respond to this interface shape change. This observation …
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