STUDYING OF NICKEL ALLOYS WITH 1 at.% OF Ge, Zn, In, Zr, AND Pb BY POSITRON ANNIHILATION METHODS |
| A. Baranowskia, M. Kostrzewab and M. Szuszkiewiczc aInstitute of Experimental Physics, Wroc³aw University, Pl. Maxa Borna 9, 50-204 Wroc³aw, Poland bPhysical Laboratory, Technical University of Opole, Ozimska 75, 45-370 Opole, Poland cInstitute of Physics, University of Opole, Oleska 48, 45-052 Opole, Poland |
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| The measurements of cold rolled nickel alloys with 1 at.% of Ge, Zn, In, Zr, Pb and additionally Ti and Sb by positron lifetime and Doppler broadening techniques have been done. Monovacancies were a dominating type of defects in the alloys. The authors of the present paper connect the differences between the annihilation parameters of the investigated samples with the existence of the vacancy-impurity atom pairs. A direct proportionality between the vacancy lifetime and the product of vacancy-impurity binding energy and atomic radius of impurity atom has been found. |
| DOI: 10.12693/APhysPolA.99.329 PACS numbers: 78.70.Bj, 78.30.Er |