The liquid-solid phase transition characteristics of AgxCu(500-x) alloy particles: a molecular dynamics study
Abstract
The phase transition characteristics of AgxCu(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.
- Publication:
-
Materials Research Express
- Pub Date:
- February 2019
- DOI:
- 10.1088/2053-1591/aaee0b
- Bibcode:
- 2019MRE.....6b5202W
- Keywords:
-
- alloy particle (silver and copper);
- molecular dynamics;
- liquid-solid phase transition;
- amorphous phase