Modifications of Cu(x)Zr(12-x)Y Icosahedra upon (0 < x < 12, Y = Be, Mg, Al, Si, P, Nb, Ag) substitutions by density functional theory computations

 
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2011 (EN)
Modifications of Cu(x)Zr(12-x)Y Icosahedra upon (0 < x < 12, Y = Be, Mg, Al, Si, P, Nb, Ag) substitutions by density functional theory computations (EN)

Bokas, G. B. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Bokas, G. B. (EN)

We present results on the bonding nature of doped Cu(x)Zr(12-x)Y Icosahedra (Y = Mg, Be, Al, Si, P, Nb, Ag). We found that a p-electron type dopant, as central atom, results in the creation of a plane with free of core-shell atomic bonds, at certain energies and weak interactions at the Fermi level, which could be viewed as a slip plane. s or d-electron type dopants may behave similarly due to significant charge transfer towards unoccupied p-electrons occurring upon alloying. These results help in the elucidation of the micro-alloying effect found experimentally in many metallic glasses. (C) 2011 Elsevier B.V. All rights reserved. (EN)

metallic glasses (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Computational Materials Science (EN)

English

2011

<Go to ISI>://000292852000017



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