Project Title:

Development of High Temperature Superconducting Coils for Magnetic Damping of Convection Currents in Crystal Growth Equipment

Intermagnetics General Corporation
P.O. Box 566, New Karner Road
Guilderland, NY 12084

93-1  15.01   5456    __      AMOUNT REQUESTED $69,934

Development of High Temperature Superconducting Coils for Magnetic Damping of Convection Currents in Crystal Growth Equipment

Abstract:

It is proposed to develop and utilize coils made of high
temperature superconducting (HTS) conductor for the purpose of
providing magnetic damping for ground- and space-based directional
solidification and crystal growth equipment. This innovative use of
HTS coils to magnetic damping technology will enable lightweight,
variable field magnets to be produced to control the buoyancy-
induced convective mixing of the liquid phase which perturbs
equilibrium conditions at the solid-liquid interface. The Phase I
effort will fabricate a subsize (3" bore) magnet to demonstrate the
concept of using HTS coils in this application and lays the
foundation for a full size (8" bore) and field (2 kgauss) coil to
be fabricated in Phase II.

Crystal Growth Equipment, Fluid Flow Control, High Field Magnets
for NMR and NDE, Magnetic Refrigeration, HTS Bearings, Power
Conditioning

Magnetic Damping, High Temperature Superconductor, Coils, Crystal
Growth