Ultrahigh-Pressure Melting of Lead: A Multidisciplinary Study

27 April 1990

journal article
Published by American Association for the Advancement of Science (AAAS) in Science

Vol. 248 (4954) , 462-465
https://doi.org/10.1126/science.248.4954.462

Abstract

Measurements of the melting temperature of lead, carried out to pressures of 1 megabar (10¹¹ pascal) and temperatures near 4000 kelvin by means of a laser-heated diamond cell, are in excellent agreement with the results of previous shock-wave experiments. The data are analyzed by means of first principles quantum mechanical calculations, and the agreement documents the reliability of current experimental and theoretical techniques for studies of melting at ultrahigh pressures. These studies have potentially wide-ranging applications, from planetary science to condensed matter physics.

Keywords

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