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‘Melting ice’ I at 77 K and 10 kbar: a new method of making amorphous solids
Amorphous solids are made mainly by cooling the liquid below the glass transition without crystallizing it, a method used since before recorded history1, and by depositing the vapour onto a cold
An apparently first-order transition between two amorphous phases of ice induced by pressure
We recently reported1 a transition from ice Ih to a high-density amorphous phase at 10 kbar, 77 K. Here we report that low-density amorphous ice (density 0.94 g cm−3) compressed at 77 K transforms to
Absorptivity of Ice I in the Range 4000–30 cm−1
The absorbance of several samples of ice Ih has been measured in the range 4000–30 cm−1, and scaled to that of a particular film of unknown thickness. The thickness of the film has been calculated by
The dielectric properties of ice Ih in the range 272–133 K
The amplitude of the orientational dielectric dispersion of impure polycrystalline ice Ih has been measured at temperatures down to 133 K in an attempt to find evidence for an ordering transition.
Pressure dependence of the elastic constants of ice Ih to 2.8 kbar by Brillouin spectroscopy
The adiabatic elastic constants of single crystals of ice Ih from the Mendenhall Glacier, and the longitudinal and transverse speeds of sound of polycrystalline ice aggregates, have been measured in
Speed of longitudinal sound in clathrate hydrates
The relative speed of longitudinal sound in clathrate hydrates and in ice has been estimated to an accuracy of about ½%. It is 0.939 and 0.945 for the full structure I and structure II clathrates,
Reanalysis of the density of liquid water in the range 0–150 °C and 0–1 kbar
The change of density of liquid water under pressure has been calculated from the speed of sound u by fitting u−2 as a polynomial in temperature and pressure, integrating with respect to pressure,
A detailed assignment of the O–H stretching bands of ice I
A detailed assignment of the infrared and Raman O–H stretching bands of disordered ice Ih and Ic is proposed. It is based on the assumptions that the spectra of disordered ice Ic are closely related
Infrared Spectra of Ices Ih and Ic in the Range 4000 to 350 cm—1
The infrared spectra of Ice Ih made from H2O, D2O, a mixture of 95% H2O and 5% D2O, and a mixture of 5% H2O and 95% D2O, and of Ice Ic made from H2O, D2O, and a mixture of 95% H2O and 5% D2O, have
Transformations of Ice II, Ice III, and Ice V at Atmospheric Pressure
The transformations that occur in ices II, III, and V at atmospheric pressure when they are heated from liquid‐nitrogen temperature have been examined by simple thermal analysis and by x‐ray