Reversible first-order transition between two H2O amorphs at ∼0.2 GPa and ∼135 K
- 15 April 1994
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 100 (8) , 5910-5912
- https://doi.org/10.1063/1.467103
Abstract
Transition between the low‐ and high‐density amorphous H2O was observed with a piston‐cylinder apparatus from 77 K to 140 K, almost the glass‐transition temperature of the amorphs. The transition was found to occur reversibly and abruptly at ∼135 K and ∼0.2 GPa with a volume change of 0.20±∼0.01 cm3/g and some hysteresis. This confirmed the transition to be first order. Absence of intermediate amorphous states between the low‐density and high‐density amorphs suggested existence of two substantially different liquid phases near the glass‐transition temperature.Keywords
This publication has 12 references indexed in Scilit:
- Visual Observations of the Amorphous-Amorphous Transition in H 2 O Under PressureScience, 1991
- Entropy of amorphous iceNature, 1989
- Nature of the transformations of ice I and low-density amorphous ice to high-density amorphous iceThe Journal of Chemical Physics, 1989
- The glass–liquid transition of hyperquenched waterNature, 1987
- High-density amorphous ice. III. Thermal propertiesThe Journal of Chemical Physics, 1986
- An apparently first-order transition between two amorphous phases of ice induced by pressureNature, 1985
- ‘Melting ice’ I at 77 K and 10 kbar: a new method of making amorphous solidsNature, 1984
- Calorimetric Study of the Glassy State. IV. Heat Capacities of Glassy Water and Cubic IceBulletin of the Chemical Society of Japan, 1968
- Vitreous Ice: Irreversible Transformations During Warm-UpNature, 1965
- Thermodynamic Properties of Liquid Water to 80° and 12000 KgmProceedings of the American Academy of Arts and Sciences, 1912