Article ID Journal Published Year Pages File Type
1635675 Transactions of Nonferrous Metals Society of China 2015 8 Pages PDF
Abstract
A series of three-dimensional numerical computations were conducted to understand the effects of different static magnetic fields on thermal fluctuation and melt flow during the detached solidification of CdZnTe. Numerical calculations were carried out by three different configurations of magnetic field: without magnetic field, with an axial magnetic field (AMF) and with a cusp-shaped magnetic field (CMF). The results reveal that the magnetic fields can effectively suppress the melt flow and thermal fluctuation and the suppression effect of the AMF is stronger than that of the CMF. Besides, the physical mechanism of thermocapillary-buoyancy convection instability was discussed and the effects of magnetic field on the critical Marangoni number were also obtained.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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