期刊
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
卷 23, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0965-0393/23/1/015008
关键词
nanoparticles; coalescence; molecular dynamics; analytical modelling; thin films
We propose an approach to coalescence studies that encompasses the random nature of nanoparticle deposition, which results in a statistical cancellation of individual sintering mechanisms. We present a rigorous, yet simple and intuitive, analytical method that describes the average coalescence behaviour of nanoparticles, regardless of constituent element or crystallinity, emphasizing only the predominant coalescence dependencies on temperature and size-dependent nanoparticle melting points. We assessed our model using molecular dynamics (MD) computer simulations of dissimilar systems, and found remarkable agreement between its predictions and the MD results. Its simplicity makes our model a suitable starting point for the development of a meso-scale simulation technique that can describe the growth of porous films and allow for their bespoke design.
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