Motion of a Nd-Fe-B melt in levitated or float-zone operated samples and its control


Motion of a Nd-Fe-B melt in levitated or float-zone operated samples and its control

Gerbeth, G.; Priede, J.; Shatrov, V.; Hermann, R.; Filip, O.

The microstructure of Nd-Fe-B alloys changes if the convection in the melt varies. A controlled influence on the melt flow is possible via magnetic fields or sample rotations. The experimental techniques behind are the electromagnetic levitation, mechanical sample rotations and a specially designed float-zone arrangement. We present theoretical/numerical results for the melt convection in those configurations. The melt flow in a levitated droplet is studied under the additional effect of a global sample rotation which may lead to a strong suppression of internal motions. A specially designed two-phase stirrer offers a strong influence on the melt flow in the float-zone facility.

  • Lecture (Conference)
    DPG-Tagung Dresden, 24.-28.03.2003, Symposium "Phasenumwandlungen in Schmelzen"

Permalink: https://www.hzdr.de/publications/Publ-5151
Publ.-Id: 5151