Thermal and acoustic experiments on polymorphic ethanol

Calorimetric and acoustic experiments were conducted on pure ethanol in the temperature range around 80-180 K, in which different solid-solid and solid-liquid transitions are observed. Using a versatile calorimetric experimental system, the specific heats of the different phases were accurately meas...

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Bibliographic Details
Published in:Philosophical magazine (2003. Print) 2008-11, Vol.88 (33-35), p.4197-4203
Main Authors: Kabtoul, B., Jiménez Riobóo, R.J., Ramos, M.A.
Format: Article
Language:English
Subjects:
Acoustical properties of liquids
Brillouin scattering
Condensed matter: structure, mechanical and thermal properties
crystallization kinetics
Equations of state, phase equilibria, and phase transitions
ethanol
Exact sciences and technology
glass transition
Glass transitions
Mechanical and acoustical properties of condensed matter
orientationally-disordered crystals
Physics
Solid-solid transitions
specific heat
Specific phase transitions
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Summary:Calorimetric and acoustic experiments were conducted on pure ethanol in the temperature range around 80-180 K, in which different solid-solid and solid-liquid transitions are observed. Using a versatile calorimetric experimental system, the specific heats of the different phases were accurately measured and the phase transitions between them investigated. The latter investigation was supported by complementary Brillouin-scattering experiments. The influence of several factors in the kinetics of crystallization versus vitrification is demonstrated and briefly discussed.
ISSN:1478-6435
1478-6443
1478-6433
DOI:10.1080/14786430802484881