Molecular-dynamics investigation of the dynamic properties of Pd and Al metals, and their alloys

Download
2003
Çoruh, Ali
The dynamic properties of Palladium (Pd) and Aluminum (Al) metals and their alloys are investigated by means of Molecular Dynamics using the Quantum Sutton-Chen force field in five different concentrations. Calculations have been carried out for liquid structures. Although this study is done for liquid structures, basic solid state properties are also investigated to prove the validity of potential parameters. Results are compared with each other and with experimental, theoretical and simulated results. Liquid state transferability of Quantum Sutton-Chen parameters have been investigated and discussed. High temperature properties, which are not easy to work experimentally, are simulated and high temperature behavior of Pd-Al alloy is investigated.

Suggestions

Molecular-dynamics simulation of radiation damage on copper clusters
Erkoç, Şakir (2000-07-01)
The effect of radiation damage on copper clusters has been investigated by performing molecular-dynamics simulation using empirical potential energy function for interaction between copper atoms. The external radiation is modeled by giving extra kinetic energy in the range of 5- 50 eV to initially chosen atom in the cluster. It has been found that the atom having extra kinetic energy dissociates independently from the amount of given energy in the studied range.
Simulation of crystallization and glass formation processes for binary Pd-Ag metal alloys
Kart, HH; Uludogan, M; Cagin, T; Tomak, Mehmet (2003-09-12)
Glass formation and crystallization process of Pd-Ag metallic alloys are investigated by means of molecular dynamics simulation. This simulation uses the quantum Sutton-Chen (Q-SC) potential to study structural and transport properties of Pd-Ag alloys. Cooling rates and concentration effects on the glass formation and crystallization of binary alloys considered in this work are investigated. Pd-Ag alloys show the glass structure at fast cooling rates while it crystallizes at slow cooling rates. Increment of...
The structural and electronic properties of BN and BP compounds and BNxP1-x alloys
Mohammad, Rezek; Katırcıoğlu, Şenay (Elsevier BV, 2009-06-10)
The structural and electronic properties of BN and BP compounds and BNxP1-x alloys have been investigated by full potential linearized augmented plane wave (FP-LAPW) method based on density functional theory (DFT). The total energies and electronic band structures of these compounds have been calculated for different approximations of exchange-correlation energy. The comparative study has showed that the Perdew-Wang-generalized gradient approximation (PW-GGA) is the best one to produce the measured structur...
Thermodynamical and mechanical properties of Pd-Ag alloys
Kart, HH; Tomak, Mehmet; Uludogan, M; Cagin, T (2005-01-01)
The mechanical and thermodynamical properties of Pd, Ag pure metals and especially PdxAg1-x alloys are studied by using the molecular dynamics simulation. The effects of temperature and concentration on the physical properties of PdxAg1-x are analyzed. Sutton-Chen (SC) and quantum Sutton-Chen (Q-SC) many-body potentials are used as interatomic interactions which enable one to investigate the thermodynamic, static, and dynamical properties of transition metals. The calculated results such as cohesive energy,...
SIMULATION CALCULATIONS FOR GOLD CLUSTERS ON THE GAAS(110) SURFACE
Erkoç, Şakir; HALICIOGLU, T; TILLER, WA (1992-08-15)
Energy- and structure-related properties of small gold clusters deposited on the GaAs(110) surface were investigated in this work using a molecular dynamics procedure. A recently developed potential energy function based on two- and three-body interactions was employed in calculating energies and forces. These calculations produced some consistent results with experiments. The three-body interactions involving As atoms in particular, were found to play an important role in determining favorable binding site...
Citation Formats
A. Çoruh, “Molecular-dynamics investigation of the dynamic properties of Pd and Al metals, and their alloys,” Ph.D. - Doctoral Program, Middle East Technical University, 2003.