INFLUENCE OFMgCONTENT ON TRAPPING EFFICIENCY INAl–MgSYSTEM BY POSITRON ANNIHILATION SPECTROSCOPY

Emad Badawi (), M. A. Abdel-Rahman and M. O. Abdelhamed
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Emad Badawi: Physics Department, Faculty of Science, El-Minia University, Egypt
M. A. Abdel-Rahman: Physics Department, Faculty of Science, El-Minia University, Egypt
M. O. Abdelhamed: Physics Department, Faculty of Science, El-Minia University, Egypt

Surface Review and Letters (SRL), 2006, vol. 13, issue 04, 485-488

Abstract: PLT and Doppler broadeningS-parameter were used forAl–Mgalloy, namely 5005, 5051, 5052 and 5083. The trapping efficiency was estimated for the pervious alloys as2.42 × 109,2.29 × 109,2.24 × 109and2.27 × 109s-1cm3, respectively and the trapping cross-section was estimated to be as2.66 × 10-16,2.14 × 10-16,2.10 × 10-16and3.51 × 10-16cm2, respectively. It is clear that the mean lifetime andS-parameter have the same behavior as a function of deformation degree and saturated at the same value of thickness reduction.

Keywords: Deformation; trapping efficiency; cross-section; S-parameter; PL (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1142/S0218625X06008451

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