Advertisement

Hydrogen Vibrations in Nickel Hydride

  • J. Eckert
  • C. F. Majkrzak
  • L. Passell
  • W. B. Daniels
  • T. A. Kitchens
Part of the NATO Conference Series book series (NATOCS, volume 6)

Abstract

Nickel hydride was prepared in a BeCu high pressure cell at room temperature by applying a hydrogen gas pressure of 7kbar to pellets pressed from fine nickel powder. The rate and degree of completion of the hydride formation was first checked by neutron diffraction using deuterium gas with the result that a deuterium to metal ratio of approximately 0.75 was reached. After desorption of the deuterium, the nickel sample was charged with hydrogen for the inelastic incoherent neutron scattering measurements. Measurements were performed with the Be filter technique at the Brookhaven High Flux Beam Reactor. The optic modes appear as a broad band in the phonon density of states from about 70 to 110 meV with peaks at approximately 88 and 108 meV. Included in the discussion of these results will also be the effect of hydride formation on the acoustic phonon density of states.

Keywords

National Science Foundation Plasma Physics Broad Band Optic Mode Neutron Diffraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • J. Eckert
    • 1
  • C. F. Majkrzak
    • 2
  • L. Passell
    • 2
  • W. B. Daniels
    • 3
  • T. A. Kitchens
    • 4
  1. 1.Los Alamos National LaboratoryUSA
  2. 2.Brookhaven National LaboratoryUSA
  3. 3.University of DelawareUSA
  4. 4.Los Alamos National LaboratoryUSA

Personalised recommendations