Frost Heaving Phenomena in Helium

Abstract
The frost heaving phenomena was studied by using a combination of 4He and porous glass. We were able to set up a perfect ice segregation condition such that the frost heave occurred at the boundary between bulk solid and supercooled liquid in the pores below the bulk freezing temperature. The frost heave was observed both in the super fluid and normal regions. The frost heaving pressure in the normal fluid region agreed well with the modified Clausius-Clapeyron equation.