Mechanical properties of AgCo nanostructured nanowires

Pisov, Stoyan; Melikhova, Oksana; Hou, Marc

doi:10.1016/j.cpc.2008.01.016

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Coalescence of Co clusters, which puts limitation on the superplastic behaviour [1], was observed in the case of AgCo nanowires during isoenergetic deformation [4]. The coalescence started approximately at the strain ε zz = 0.45 and at higher strains a coaxial structure was formed with Co covered by Ag [4].…”

Section: Analyses Of Fvmentioning

confidence: 90%

“…Lattice constants 4.090Å and 3.615Å were used for Ag and Co, respectively. Considering that Co clusters have also the fcc structure (and not hcp as bulk crystalline Co), the Co lattice constant used in calculations was deduced from the pair correlation functions for AgCo nanowire [4]. The positron ground state energies calculated by the ATSUP technique for fcc Ag and Co bulk were E Ag = 0.05 eV and E Co = 4.75 eV, respectively.…”

Section: Simulation Of Positron Responsementioning

confidence: 99%

“…The detailed description of the sample preparation procedure and deformation experiment can be found in Ref. [4].…”

Section: Samplesmentioning

confidence: 99%

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Simulation of Positron Annihilation Response to Mechanical Deformation of Nanostructured AgCo

et al. 2008

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Nanostructured materials attract nowadays a broad attention due to their specific properties. Defects play an essential role in material properties so their characterisation is very important. The evolution of the various open volume defects in AgCo nanowire modelled samples obtained using molecular dynamics was studied. Isothermal and isoenergetic deformation mechanisms are considered. General analyses of open volume defects concerning their size and their chemical environment were performed. Positron lifetimes, binding energies, and high momentum parts of the momentum distribution of annihilation γ-quanta were calculated for selected defects.

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Section: Analyses Of Fvmentioning

confidence: 90%

Section: Simulation Of Positron Responsementioning

confidence: 99%