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Microporous Carbon Disks For Sorption RefrigeratorsSlow, carefully controlled pyrolysis found to turn polyvinylidene chloride disks into carbon disks having small pores and large surface areas. Disks exhibit high adsorptivities making them useful in krypton-sorption refrigerators. Carbons made from polyvinylidene chloride have greater adsorptive capacities. Thermal instability controlled and variability of product reduced by careful control of rates of heating, heating times, and rate of final cooling.
Document ID
19930000148
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Munukutla, Lakshmi V.
(Arizona State Univ.)
Moore, Mark R.
(Arizona State Univ.)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
NPO-18238
Accession Number
93B10148
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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