The liquid-solid phase transition characteristics of AgxCu(500−x) alloy particles: a molecular dynamics study

The phase transition characteristics of Ag x Cu(500−x) (x = 0, 100, 125, 200, 250, 300, 375, 400, 500) alloy particles are studied by molecular dynamics using the embedded atom potentials. We find that the Ag-Cu alloy particles tend to be Cu-core/Ag-shell structure. Ag300Cu200 alloy particle forms a glass phase at a quenching rate of more than 2 × 1011 K s−1. It is an atom-level amorphous alloying particle. The binary Ag-Cu alloy particle with stoichiometry Ag3Cu2 is favorable for producing amorphous phase and the phase transition temperature of Ag-Cu alloy particles is typically less than or close to the phase transition temperature of the Ag particle at the same size.