Magnetic levitation of diamagnetic materials under a gradient of strong magnetic fields was applied to a crystal growth solution and while melting levitated materials. Heterogeneous nucleation was considerably suppressed in NH_4Cl crystal growth in a levitating droplet, and dendrites grew along the droplet surface. In the crystal growth solution using a container, the NH_4Cl crystal was levitated in the solution with no contact between the walls and the solution surface. Containerless melting and solidification of paraffin was performed with the magnetic levitation furnace, and Marangoni convection was observed in the melt droplet. Furthermore, heat transfer behavior in water under gradient magnetic fields is reported.
展开▼
