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Science 30 November 1979:
Vol. 206. no. 4422, pp. 1073 - 1075
DOI: 10.1126/science.206.4422.1073
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Articles

Melting of Helium at Room Temperature and High Pressure

J. M. BESSON 1 and J. P. PINCEAUX 1

1 Laboratoire de Physique des Solides, Centre National de la Recherche Scientifique, and Departement des Hautes Pressions, Université Pierre et Marie Curie, 4, Place Jussieu, Tour 13, E2, 75230 Paris, Cedex 05 France

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.

Submitted on June 11, 1979
Revised on July 31, 1979

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Science. ISSN 0036-8075 (print), 1095-9203 (online)