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Atomistic Insights into the Exothermic Self-sustained Alloying of Al-shell /Ni-core Nanoparticle Triggered by Laser Irradiation

Abstract

By imposing a picosecond laser pulse irradiation on an Al-shell/Ni-core nanoparticle, the exothermic self-sustained alloying is triggered. Molecular dynamics simulation is implemented to get atomistic insights into the alloying process. The nanoparticle is composed as equiatomic number of Al atoms in the shell and Ni atoms in the core. Due to the absorption of laser energy from the surface of the nanoparticle, the atomic motion becomes active. The inter-diffusion of Ni and Al atom results in thermal energy generation. It is found that the incident laser energy plays the role of controlling self-heating degree of the nanoparticle by governing the potential energy change during the inter-diffusion of Al-shell and Ni-core atoms.

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Publication details

The article was received on 11 May 2018, accepted on 11 Jul 2018 and first published on 12 Jul 2018


Article type: Paper
DOI: 10.1039/C8CP03017K
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    Atomistic Insights into the Exothermic Self-sustained Alloying of Al-shell /Ni-core Nanoparticle Triggered by Laser Irradiation

    Y. Rong, P. Ji, M. He, Y. Zhang and Y. Tang, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP03017K

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