Journal Articles (All Issues)

Abstract

We performed simulations to study the fusion process of metal nanoparticles made of nickel, aluminum, copper, silver and gold. We used two different methods: the Monte Carlo method and the molecular dynamics method. The nanoparticles were subjected to gradual thermal exposure during the simulations, and mono- and bi-metallic systems were taken into account. The nanoparticles were designed as spheres and two perpendicular blocks. Our study revealed significant differences in the evolution of the fusion process between mono- and bi-metallic nanoparticles. We observed that several properties varied significantly, including the coalescence temperature, the structure and shape of the neck formed between the nanoparticles, and the dihedral angle between them. But it is possible to accurately predict the behavior of a bimetallic system during the fusion process based on the fusion behavior observed in a monometallic system containing the same constituent metals. This indicates the complexity of the fusion process in bimetallic systems, and highlights the need for further research in this area. Overall, the study provides valuable insights into the coalescence behavior of metal nanoparticles and emphasizes the importance of considering the specific properties of bimetallic systems.

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