Mechanisms of Coalescence of Metallic Nanodroplets and Sintering of Metallic Nanoparticles


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Abstract

The regularities and mechanisms of coalescence of Au nanodroplets and sintering of solid Au nanoparticles are investigated using molecular dynamics experiments and some theoretical models. It is established that the characteristic time of coalescence τ is proportional to the radius r0 of the original nanodroplets. Both the conclusion and the quantitative estimations of the proportionality coefficient between τ and r0 agree with Frenkel’s theory (1946), yet this theory was proposed for describing the coalescence of macroscopic droplets.

About the authors

V. M. Samsonov

Tver State University

Author for correspondence.
Email: samsonoff@inbox.ru
Russian Federation, Tver

I. V. Talyzin

Tver State University

Author for correspondence.
Email: talyzin_igor@mail.ru
Russian Federation, Tver

S. A. Vasilyev

Tver State University; Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences

Author for correspondence.
Email: vsa812@yandex.ru
Russian Federation, Tver; Chernogolovka, Moscow oblast

M. I. Alymov

Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences

Author for correspondence.
Email: director@ism.ac.ru
Russian Federation, Chernogolovka, Moscow oblast

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