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Phase transformations and the spectral reflectance of solid sulfur - Can metastable sulfur allotropes exist on Io?Laboratory investigations have been conducted on the effects of variations in sulfur sample histories on their solid-state transformation rate and the corresponding spectral variation of freshly frozen sulfur. The temporal variations in question may be due to differences in the amount and type of metastable allotropes present in the sulfur after solidification, as well as to the physics of the phase-transformation process itself. The results obtained are pertinent to the physical behavior and spectral variation of such freshly solidified sulfur as may exist on the Jupiter moon Io; this would initially solidify into a glassy solid or monoclinic crystalline lattice, then approach ambient dayside temperatures. Laboratory results imply that the monoclinic or polymeric allotropes can in these circumstances be maintained, and will take years to convert to the stable orthorhombic crystalline form.
Document ID
19910041644
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Moses, Julianne I.
(California Institute of Technology Pasadena, United States)
Nash, Douglas B.
(JPL Pasadena; San Juan Capistrano Research Institute, CA, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1991
Publication Information
Publication: Icarus
Volume: 89
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
91A26267
Funding Number(s)
CONTRACT_GRANT: NAGW-1350
Distribution Limits
Public
Copyright
Other

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