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Development Of A Magnetic Directional-Solidification FurnaceReport describes development of directional-solidification furnace in which axial magnetic field is imposed by surrounding ring permanent magnets and/or electromagnets and pole pieces. Furnace provides controlled axial temperature gradients in multiple zones, through which ampoule containing sample of material to be solidified is translated at controlled speed by low-vibration, lead-screw, stepping-motor-driven mechanism. Intended for use in low-gravity (spaceflight) experiments on melt growth of high-purity semiconductor crystals.
Document ID
19960022434
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Aldrich, Bill R.
(Microgravity Systems, Inc.)
Lehoczky, Sandor L.
(Microgravity Systems, Inc.)
Date Acquired
August 17, 2013
Publication Date
May 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 5
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
MFS-26293
Accession Number
96B10249
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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