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Mass Flow Through Solid 4he Induced By The Fountain Effect, M. W. Ray, Robert B. Hallock
Mass Flow Through Solid 4he Induced By The Fountain Effect, M. W. Ray, Robert B. Hallock
Robert Hallock
Using an apparatus that allows superfluid liquid 4_He to be in contact with hcp solid 4_He at pressures greater than the bulk melting pressure of the solid, we have performed experiments that show evidence for 4_He mass flux through the solid and the likely presence of superfluid inside the solid. We present results that show that a thermomechanical equilibrium in quantitative agreement with the fountain effect exists between two liquid reservoirs connected to each other through two superfluid-filled Vycor rods in series with a chamber filled with solid〖 4〗_He. We use the thermomechanical effect to induce flow through the solid …