Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Melting of He-3 in a phase-separated solid He-3-He-4 mixture.
AU - Haley, Richard P.
AU - Adams, E. D.
PY - 1997/5
Y1 - 1997/5
N2 - The melting pressure of the He-3-rich phase, which is formed after phase separation of a mixture of 0.6% He-3 in He-4, has been studied in the temperature range 1-150 mK, below the phase-separation temperature T-ps, at pressures between 2.78 and 3.56 MPa. Measurements were made with the mixture confined in a silver sinter, and also in an open volume for comparison. An elevation of the melting pressure relative to pure He-3 of up to 60 kPa in the sinter cell and 20 kPa in the open-volume cell was observed. Hysteresis between the freezing and melting temperatures was found for both cells, similar to that observed for pure He-3 in small pores. The results of Schrenk et al. for heat capacity measurements on a similar system are discussed.
AB - The melting pressure of the He-3-rich phase, which is formed after phase separation of a mixture of 0.6% He-3 in He-4, has been studied in the temperature range 1-150 mK, below the phase-separation temperature T-ps, at pressures between 2.78 and 3.56 MPa. Measurements were made with the mixture confined in a silver sinter, and also in an open volume for comparison. An elevation of the melting pressure relative to pure He-3 of up to 60 kPa in the sinter cell and 20 kPa in the open-volume cell was observed. Hysteresis between the freezing and melting temperatures was found for both cells, similar to that observed for pure He-3 in small pores. The results of Schrenk et al. for heat capacity measurements on a similar system are discussed.
KW - PRESSURE
KW - SOLIDIFICATION
KW - HELIUM
M3 - Journal article
VL - 23
SP - 461
EP - 463
JO - Low Temperature Physics
JF - Low Temperature Physics
SN - 1090-6517
IS - 5-6
ER -