Johari GP, Hallbrucker A, Mayer E
G. P. Johari, Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario L8S 4L7, Canada. A. Hallbrucker and E. Mayer, Institut fur Allgemeine, Anorganische und Theoretische Chemie, Universitat Innsbruck, A-6020 Innsbruck, Austria.
Science. 1996 Jul 5;273(5271):90-2. doi: 10.1126/science.273.5271.90.
Vapor-deposited amorphous solid and hyperquenched glassy water were found to irreversibly transform, on compression at 77 kelvin, to a high-density amorphous solid. On heating at atmospheric pressure, this solid became viscous water (water B), with a reversible glass-liquid transition onset at 129 +/- 2 kelvin. A different form of viscous water (water A) was formed by heating the uncompressed vapor-deposited amorphous solid and hyperquenched liquid water. On thermal cycling up to 148 kelvin, water B remained kinetically and thermodynamically distinct from water A. The occurrence of these two states, which do not interconvert, helps explain both the configurational relaxation of water and stress-induced amorphization.
