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

LW Wang and J Hou and HM Lu and WJ Lu and YF Dai and CL Luo, MATERIALS RESEARCH EXPRESS, 6, 025202 (2019).

DOI: 10.1088/2053-1591/aaee0b

The phase transition characteristics ofAg(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. Ag 300 Cu 200 alloy particle forms a glass phase at a quenching rate of more than 2 x 10(11) 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.

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