Elastic compression of nanoparticles with surface energy

Yue Ding; Xin-Rui Niu; Gang-Feng Wang

doi:10.1088/0022-3727/48/48/485303

Elastic compression of nanoparticles with surface energy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Overview

15 Scopus Citations

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Author(s)

Yue Ding
Xin-Rui Niu
Gang-Feng Wang

Related Research Unit(s)

Centre for Advanced Structural Materials

Detail(s)

Original language	English
Article number	485303
Journal / Publication	Journal of Physics D: Applied Physics
Volume	48
Issue number	48
Publication status	Published - 5 Nov 2015

Link(s)

DOI	DOI https://doi.org/10.1088/0022-3727/48/48/485303 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84948411266&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(e2fe9ff1-a4e4-4934-81a5-80ce81a48716).html

Abstract

The compression of elastic nanoparticles by two rigid planes is analyzed in the present paper. Through a finite element approach with the incorporation of surface energy, we calculate the elastic field of nanoparticles and obtain the explicit expressions for contact radius and indent depth with respect to the compressive load. It is found that when the contact radius is comparable with the ratio of surface energy density to elastic modulus, surface effect significantly affects the elastic field and the overall compressive response of nanoparticles. This study provides an effective tool to analyze the elastic deformation of nanoparticles, and is helpful to measure their elastic properties through compression.