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Very high-vacuum heat treatment facilityA vacuum heat treatment facility, with hot zone dimensions of 12 x 19 x 19 cm, has been designed and constructed at a cost substantially below that of a commercial unit. The design incorporates efficient water cooling and a resistive heating element. A vacuum pressure of 1.5 x 10 to the -8th torr at room temperature has been obtained after baking. The temperature limit is approximately 1900 C. This limit results from the choice of niobium as the hot zone material.
Document ID
19880036952
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Folkner, W. M.
(Maryland Univ. College Park, MD, United States)
Moody, M. V.
(Maryland Univ. College Park, MD, United States)
Richard, J.-P.
(Maryland, University College Park, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1987
Publication Information
Publication: Review of Scientific Instruments
Volume: 58
ISSN: 0034-6748
Subject Category
Instrumentation And Photography
Accession Number
88A24179
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-15218
CONTRACT_GRANT: NAS8-33822
Distribution Limits
Public
Copyright
Other

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