Sulfur Melting and Polymorphism under Pressure: Outlines of Fields for 12 Crystalline Phases

The polymorphism of sulfur has been investigated by static and dynamic methods up to 500°C at 35 kilobars and up to 350°C at 100 kilobars. The melting curve of sulfur to 31 kilobars and phase boundaries of the so-called "4.04-angstrom phase" have been determined. Evidence has been obtained...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1969-10, Vol.166 (3902), p.218-221
Main Authors: Vezzoli, Gary C., Dachille, Frank, Roy, Rustum
Format: Article
Language:English
Subjects:
Electrical phases
High pressure
Liquids
Liquidus
Melting
Observational research
Radial velocity
Rapid quenching
Sulfur
X ray diffraction
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Summary:The polymorphism of sulfur has been investigated by static and dynamic methods up to 500°C at 35 kilobars and up to 350°C at 100 kilobars. The melting curve of sulfur to 31 kilobars and phase boundaries of the so-called "4.04-angstrom phase" have been determined. Evidence has been obtained for phase fields of nine new high-pressure forms of sulfur.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.166.3902.218