Solidification and Superfluidity ofin Porous Vycor Glass
- 7 February 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 50 (6), 425-428
- https://doi.org/10.1103/physrevlett.50.425
Abstract
The onset of solidification of in porous Vycor is identified from changes in transverse sound velocity. From observed overpressures required to initiate freezing (ranging from 18 bars at 1.3 K to 30.7 bars at 2.38 K), the interfacial energy between liquid and solid was estimated. The superfluid transition up to 35.5 bars was also observed.
Keywords
This publication has 8 references indexed in Scilit:
- Surface and confinement effects in the solidification of three-dimensional heliumPhysical Review B, 1982
- Superfluid density of thinfilms adsorbed in porous Vycor glassPhysical Review B, 1981
- Equivalence between fourth sound in liquid He II at low temperatures and the Biot slow wave in consolidated porous mediaApplied Physics Letters, 1980
- Interface between Superfluid and SolidPhysical Review Letters, 1980
- Surface Tension of SolidPhysical Review Letters, 1979
- Anomalous Sound Velocity in Vitreous Silica at Very Low TemperaturesPhysical Review Letters, 1974
- Mechanics of Deformation and Acoustic Propagation in Porous MediaJournal of Applied Physics, 1962
- Sorption of Helium and Nitrogen on Vycor Porous GlassProceedings of the Physical Society, 1962