Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 16, Issue 10, Pages 1707-1714Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/16/10/003
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The viscosity of liquid sulfur up to 9.7 GPa and 1067 K was measured using the in situ x-ray radiography falling sphere method. The viscosity coefficients were found to range from 0.11 to 0.69 Pa s, and decreased continuously with increasing pressure under approximately constant homologous temperature conditions. The observed viscosity variation suggests that a gradual structural change occurs in liquid sulfur with pressure up to 10 GPa. The L-L' transition in liquid sulfur proposed by Brazhkin et al (1991 Phys. Lett. A 154 413) from thermobaric measurements has not been confirmed by the present viscometry.
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