Freezing of glycerol-water mixtures under pressure

• Published in: Journal of physics. Condensed matter Vol. 24; no. 32; pp. 325103, 1 - 325103
• Main Authors: Klotz, S, Takemura, K, Strässle, Th, Hansen, Th
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 15.08.2012; Institute of Physics
• Subjects: Condensed matter; Condensed matter: structure, mechanical and thermal properties; Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; Fluorescence; Freezing; Glass transitions; Glycerol-Water; Glycerols; Molecular dynamics; Neutron scattering; Phase separation; Physics; Specific phase transitions; Water; Glass transition; Pressure effects; Hydrogen bonds; Phase separation; Molecular dynamics method; Fluorescence; Glycerol; Binary mixtures; Neutron diffusion; Solidification

We investigated freezing of pure glycerol as well as glycerol-water (GW) mixtures with 3:1 and 3:2 volume fractions as a function of pressure in the 0-10 GPa range by ruby fluorescence spectroscopy and neutron scattering. We find that the glass transition pressure increases from 5.5 GPa for pure gly...