Applied Physics A

, Volume 26, Issue 2, pp 107–113 | Cite as

Vacancy migration energy in quenched Al-Mg0.01 alloy by positron annihilation

  • F. Boileau
  • B. Geffroy
  • R. Paulin
Contributed Papers

Abstract

The isothermal recovery rates of vacancy-impurity complexes in an aluminium-1% magnesium alloy are measured in situ at eight temperatures from variations of colinear annihilation γ-rays versus time. These data analysed in terms of a time dependant β+-trapping model yield two apparent migration energies of 0.8 eV±0.1 eV and 0.9 eV±0.05 eV. The nature of the complexes is discussed and their binding energy is estimated.

PACS

61.70 78.70 

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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • F. Boileau
    • 1
  • B. Geffroy
    • 1
  • R. Paulin
    • 1
  1. 1.Institut National des Sciences et Techniques NucléairesSaclayFrance

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