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Improved Transparent Furnace For Crystal-Growth ExperimentsNovel design and fabrication process for transparent crystal-growing furnace developed. Design consists of one or more heater zones in which heating wire coiled around insides of quartz tubes. Ampoule of material supported inside furnace by guide wire. Crystal then grown by directional freezing of material in ampoule. Distinct feature of use of quartz is capability of direct visual observation of crystal-growth process during experiment. Study of transparent electronic materials conducted in new furnaces.
Document ID
19890000572
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Rosenthal, Bruce N. (NASA Lewis Research Center, Cleveland, OH.)
White, Steve (NASA Lewis Research Center, Cleveland, OH.)
Kalinowski, Joseph M. (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
November 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 11
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
LEW-14895
Accession Number
89B10572
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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