High-Temperature Superconducting Coils for Magnetic Damping of Convection Currents in Crystal Growth Equipment
National Aeronautics and Space Administration
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Small Business Information
Intermagnetics General Corp
450 Old Niskayuna Road, P.O., Box 461, Latham, NY, 12110
Socially and Economically Disadvantaged:
Drew W. Hazelton
AbstractIt 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.
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