Size effect on the spontaneous coalescence of nanowires

Abstract

This paper investigates the size effect on the coalescence process of contacting nanoparticles. It is revealed by molecular dynamics that the nanometer-sized surface curvature coupled with the effective melting temperature exhibits a strong influence on the atom diffusion at the interface, and is therefore critical to the coalescence time. This effect is particularly pronouncing for surface curvatures below 20 nm. A phenomenological model is derived from the melting-point reduction approach to describe the kinetic process of nanowire coalescence and is validated against a variety of simulation datasets. The quantitative correlation between the sample size, the sintering temperature and the contact morphology evolution is demonstrated.

4 figures

References in corpus (3)

• Electrostatic deflections of cantilevered metallic carbon nanotubes via charge-dipole model
• Adsorption of Organic Molecules on Onion-Like-Carbons: Insights on the Formation of Interstellar Hydrocarbons
• Electrostatic deflections of cantilevered semiconducting single-walled carbon nanotubes

Cited by in corpus (4)

• Chirality-Dependent Motion Transmission between Aligned Carbon Nanotubes
• Selective Conduction of Organic Molecules via Free-Standing Graphene
• Chirality-Selective Transport of Benzene Molecules on Carbon Nanotubes
• Gear Junctions between Chiral Boron Nitride Nanotubes