Reports

Melting of Helium at Room Temperature and High Pressure

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Science  30 Nov 1979:
Vol. 206, Issue 4422, pp. 1073-1075
DOI: 10.1126/science.206.4422.1073

Abstract

Helium has been solidified at room temperature. The melting pressure at 24°C is 115 kilobars, in complete agreement with the Simon equation. An original apparatus was developed for this experiment, which allows loading of the cell at room temperature. Applications to various areas of research are suggested.