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2001 | 99 | 3-4 | 479-486
Article title

Positron Annihilation in Pure and Hydrogenated Palladium Deformed by Uniaxial Tension

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EN
Abstracts
EN
Angular distributions of the positron annihilation quanta were measured for pure and hydrogenated palladium samples deformed by uniaxial tension up to different deformation degrees. The relative difference curves, and the values of the R parameter characterizing the dimensions of defects trapping the positrons, were determined. It was found that for relative elongations ranging from 1.9 to 3.5%, in both the pure and hydrogenated palladium, the positrons are trapped in defects larger than vacancy clusters. The values of the R parameter for pure palladium samples elongated up to 0.39, 0.77, and 1.5% indicate a dominant role of smaller defects, like the vacancy clusters.
Keywords
EN
Contributors
author
  • Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland
author
  • Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland
  • Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland
author
  • Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland
References
  • 1. R.W.K. Honeycombe, The Plastic Deformation of Metals, Publ. Edward Aarnold, Cambridge 1968
  • 2. T.B. Flanagan, W.A. Oates, Ann. Rev. Mater. Sci., 21, 269, 1991
  • 3. C. Szymański, S. Chabik, J. Pająk, B. Rozenfeld, Phys. Status Solidi A, 60, 375, 1980
  • 4. J.B. Condon, T. Schoher, J. Nucl. Mater., 207, 1, 1991
  • 5. W. Triftshauser, Phys. Rev. B, 30, 4634, 1975
  • 6. S. Chabik, W. Rudzińska, M. Szuszkiewicz, C. Szymański, in: Materiały 27 Seminarium Anihilacji Pozytonów, Jarnołtówek (Poland), Ed. S. Chabik, Instytut Fizyki Uniwersytetu Opolskiego, Opole 1995, p. 31 (in Polish)
  • 7. R. Pietrzak, R. Szatanik, W. Smiatek, to be published
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv99n325kz
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