A Glass of Water

Camera Plane Image Water Glass

Heating-induced glass-glass and glass-liquid transformations in computer simulations of water.

Water exists in at least two families of glassy states, broadly categorized as the low-density (LDA) and high-density amorphous ice (HDA). Remarkably, LDA and HDA can be reversibly interconverted via appropriate thermodynamic paths, such as isothermal compression and isobaric heating, exhibiting first-order-like phase transitions. We perform out-of-equilibrium molecular dynamics simulations of ...

Acoustics of water saturated packed glass spheres

2014 We have measured the velocity and attenuation of sound in a pack of water saturated glass spheres. The frequency range spreads from 200 kHz to 10 MHz and the diameter of the spheres is varied from 50 03BCm to 500 03BCm. Our experimental data clearly confirm the validity of Biot’s theory of the propagation of sound in porous medium. J. Physique LETTRES 42 (1981) L-477-L-480 Classification P...

Glass-transition temperature of water: a simulation study.

We report a computer simulation study of the glass transition for water using the extended simple point charge potential. To mimic the difference between standard and hyperquenched glass, we generate glassy configurations with different cooling rates, and we calculate the temperature dependence of the specific heat on heating. The absence of crystallization phenomena allows us, for properly ann...

The Glass Transition Temperature of Water: A Simulation Study

Nicolas Giovambattista, C. Austen Angell, Francesco Sciortino and H. Eugene Stanley Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215. Dept. of Chemistry and Biochemistry Arizona State University, Tempe, AZ 85287 USA and Dipartimento di Fisica, Istituto Nazionale per la Fisica della Materia, and I.N.F.M. Center for Statistical Mechanics and Com...