Atomistic insights into the exothermic self-sustained alloying of Al-shell/Ni-core nanoparticle triggered by laser irradiation

Rong, Yiming1; Ji, Pengfei2; He, Mengzhe1; Zhang, Yuwen3; Tang, Yong2

2018-08-21

10.1039/c8cp03017k

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   Impact Factor & Quartile

1463-9076

1463-9084

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

SCI ; EI

English

First

China Postdoctoral Science Foundation[2017M612653]

Chemistry ; Physics

Chemistry, Physical ; Physics, Atomic, Molecular & Chemical

WOS:000442270800006

ROYAL SOC CHEMISTRY

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China
2.South China Univ Technol, Sch Mech & Automot Engn, Key Lab Surface Funct Struct Mfg Guang Dong Highe, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Missouri, Dept Mech & Aerosp Engn, Columbia, MO 65211 USA

Rong, Yiming,Ji, Pengfei,He, Mengzhe,et al. Atomistic insights into the exothermic self-sustained alloying of Al-shell/Ni-core nanoparticle triggered by laser irradiation[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2018,20(31):20398-20405.

Rong, Yiming,Ji, Pengfei,He, Mengzhe,Zhang, Yuwen,&Tang, Yong.(2018).Atomistic insights into the exothermic self-sustained alloying of Al-shell/Ni-core nanoparticle triggered by laser irradiation.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,20(31),20398-20405.

Rong, Yiming,et al."Atomistic insights into the exothermic self-sustained alloying of Al-shell/Ni-core nanoparticle triggered by laser irradiation".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20.31(2018):20398-20405.