Vacancy migration energy in quenched Al-Mg0.01 alloy by positron annihilation |
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Authors: | F. Boileau B. Geffroy R. Paulin |
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Affiliation: | (1) Institut National des Sciences et Techniques Nucléaires, Saclay, France |
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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 -rays versus time. These data analysed in terms of a time dependant +-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. |
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Keywords: | 61.70 78.70 |
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