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Record Details

Record 38 of 10256
Transport properties of liquid metal hydrogen under high pressures
Author and Affiliation:
Brown, R. C.(Sheffield Univ.)
March, N. H.(Sheffield Univ.)
Abstract: A theory is developed for the compressibility and transport properties of liquid metallic hydrogen, near to its melting point and under high pressure. The interionic force law is assumed to be of the screened Coulomb type, because hydrogen has no core electrons. The random phase approximation is used to obtain the structure factor S(k) of the system in terms of the Fourier transform of this force law. The long wavelenth limit of the structure factor S(o) is related to the compressibility, which is much lower than that of alkali metals at their melting points. The diffusion constant at the melting point is obtained in terms of the Debye frequency, using a frequency spectrum analogous with the phonon spectrum of a solid. A similar argument is used to obtain the combined shear and bulk viscosities, but these depend also on S(o). The transport coefficients are found to be about the same size as those of alkali metals at their melting points.
Publication Date: Jan 01, 1972
Document ID:
19740003541
(Acquired Nov 22, 1995)
Accession Number: 74N11654
Subject Category: MATERIALS, METALLIC
Document Type: Conference Paper
Publication Information: Univ. Space Res. Assoc. High Pressure Phys. and Planetary Interiors; p. p 206-209
Publisher Information: Netherlands
Financial Sponsor: NASA; United States
Organization Source: Sheffield Univ.; Dept. of Physics.
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: HIGH PRESSURE; LIQUID HYDROGEN; TRANSPORT PROPERTIES; ALKALI METALS; COMPRESSIBILITY; FOURIER TRANSFORMATION; LIQUID METALS; MELTING POINTS
Imprint And Other Notes: In Univ. Space Res. Assoc. High Pressure Phys. and Planetary Interiors p 206-209 (SEE N74-11621 02-30)
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