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Thermal and mechanical properties of some fcc transition metals
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Date
1999-02-01
Author
Cagin, T
Dereli, G
Uludogan, M
Tomak, Mehmet
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The temperature dependence of thermodynamic and mechanical properties of six fee transition metals (Ni, Cu, Ag, Au, Pt, Rh) are studied using molecular dynamics (MD) simulations. The structures are described at elevated temperatures by the force fields developed by Sutton and co-workers within the context of the tight binding approach. In these simulations the thermodynamic and mechanical properties are calculated in the temperature range between 0 to 1500 K using the statistical fluctuation expressions over the MD trajectories. [S0163-1829(99)00805-X].
Subject Keywords
Finnis-sinclair potentials
,
Molecular-dynamics simulations
,
Elastic-constants
,
Temperature
,
Surfaces
,
Alloys
,
Pressure
URI
https://hdl.handle.net/11511/40000
Journal
PHYSICAL REVIEW B
DOI
https://doi.org/10.1103/physrevb.59.3468
Collections
Department of Physics, Article
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We utilize the many-body potentials developed by Sutton and Chen within the context of the tight-binding approach to study the bulk properties of metals and metal alloys in molecular dynamics (MD) simulations. In the simulations of Pt-Rh alloys we used the MD algorithms based on an extended Hamiltonian formalism from the works of Andersen, Parrinello and Rahman, Nose, Hoover, and Cagin. The simulator program that we use generates information about various physical properties during the run time, along with ...
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The performance of the quantum Sutton-Chen many body potential on the solid and liquid properties of Pd-Ni fcc transition metal alloys is investigated by molecular dynamics simulations. Elastic constants, phonon dispersion relations and diffusion coefficients are studied. The melting temperatures of Pd-Ni alloys are predicted. The transferability of the potential is also tested by simulating the liquid state. Comparison of the molecular dynamics results with available experimental data shows that the quantu...
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T. Cagin, G. Dereli, M. Uludogan, and M. Tomak, “Thermal and mechanical properties of some fcc transition metals,”
PHYSICAL REVIEW B
, pp. 3468–3473, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40000.