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Opportunity for academic research in a low-gravity environment - Crystal growthThe history of basic and applied research on crystal growth (CG), especially of semiconductor materials, is reviewed, stressing the dominance (at least in the U.S.) of industrial R&D projects over academic programs and the need for more extensive fundamental investigations. The NASA microgravity research program and the recommendations of the University Space Research Association are examined as they affect the availability of space facilities for academic CG research. Also included is a report on ground experiments on the effectiveness of magnetic fields in controlling vertical Bridgman CG and melt stability, using the apparatus employed in the Apollo-Soyuz experiments (Witt et al., 1978); the results are presented in graphs and briefly characterized. The role of NASA's microgravity CG program in stimulating academic work on CG, the importance of convection effects, CG work on materials other than semiconductors, and NSF support of CG research are discussed in a comment by R. F. Sekerka.
Document ID
19870035888
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Matthiesen, D. H.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Wargo, M. J.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Witt, A. F.
(MIT Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Materials Processing
Accession Number
87A23162
Funding Number(s)
CONTRACT_GRANT: NSG-7645
Distribution Limits
Public
Copyright
Other

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