Effects of crystallinity on sintering of metal nanoparticles

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Abstract

Regularities and mechanisms of coalescence of Au nanodroplets and sintering of solid Au nanoparticles have been investigated by using molecular dynamics and some theoretical models. It has been established that the characteristic time of coalescence t is proportional to radius r0 of initial nanodroplets. Both the above conclusion and some quantitative estimations of the proportionality coefficient between t and r0 agree with Frenkel’s theory (1946) though this theory was rut forward to describe coalescence of macroscopic droplets.

About the authors

V. M. Samsonov

Tver State University

Author for correspondence.
Email: samsonoff@inbox.ru
Russian Federation, 33, Zheliabova street, Tver, 170100

I. V. Talyzin

Tver State University

Email: samsonoff@inbox.ru
Russian Federation, 33, Zheliabova street, Tver, 170100

S. A. Vasilyev

Tver State University; Merzhanov Institute of Structural Macrokinetics and Material Sciences

Email: samsonoff@inbox.ru
Russian Federation, 33, Zheliabova street, Tver, 170100; 142432, Moscow Region, Chernogolovka, Academician Osypian street, 8

M. I. Alymov

Merzhanov Institute of Structural Macrokinetics and Material Sciences

Email: samsonoff@inbox.ru

Corresponding Member of the Russian Academy of Sciences

Russian Federation, 142432, Moscow Region, Chernogolovka, Academician Osypian street, 8

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