Hydrogen at High Pressures and Temperatures

Details Hydrogen at High Pressures and Temperatures Hydrogen at High Pressures and Temperatures

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...120..227r&link_type=abstract

Astronomy and Astrophysics, Vol.120, P. 227, 1983

Astronomy and Astrophysics

Astrophysics

29

Scientific paper

We assess the degree of ionization, and equation of state of hydrogen above the dissociation temperature Tdiss=4.47 eV/k. A vapour-liquid-like phase transition is found below a (second) critical point at (Te,Pc) =(1.9 104 K, 2.4 1011 dyn cm-2). At the transition, the degree of ionization changes almost discontinuously. The low-density phase is almost non-degenerate whereas the high-density phase is almost completely degenerate, i. e. can be identified with liquid metallic hydrogen. We present an updated phase diagram.

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