Hydrogen Absorption and Critical Point Lowering in Thin PdHx Films

  • H. L. M. Bakker
  • G. J. de Bruin-Hordijk
  • R. Feenstra
  • R. Griessen
  • D. G. de Groot
  • J. Rector
Part of the NATO Conference Series book series (NATOCS, volume 6)


The attractive hydrogen-hydrogen interaction which causes phase transitions in metalhydrides is of elastic origin1,2. Two hydrogen atoms embedded in a metal will see each other via their respective long-range displacement fields in the lattice. As the displacement field around a dilatation center falls off as 1/r2 the range of the perturbation in the lattice is infinite and the H-H interaction depends on the shape and the size of the sample. This has clearly been put in evidence by Zabel and Peis13. These authors showed that the spatial distribution of the segregated phases in cylindrically shaped Nb samples depended crucially on the ratio of the length to the radius of the samples.


Hydrogen Absorption Quartz Crystal Critical Pressure Quartz Substrate Dilatation Center 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • H. L. M. Bakker
    • 1
  • G. J. de Bruin-Hordijk
    • 1
  • R. Feenstra
    • 1
  • R. Griessen
    • 1
  • D. G. de Groot
    • 1
  • J. Rector
    • 1
  1. 1.Natuurkundig LaboratoriumVrije UniversiteitAmsterdamThe Netherlands

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