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Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study

Fabrication of periodic nanostructures has drawn increasing interest owing to their applications of such functional structures in optics, biomedical and power generation devices. Nano-indentation technique has been proven as a method to fabricate periodic nanostructures. In this study, the molecular...

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Autores principales: Geng, Yanquan, Wang, Jiqiang, Li, Zihan, Yan, Yongda, Zhang, Jingran, Gan, Yang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9061931/
https://www.ncbi.nlm.nih.gov/pubmed/35499607
http://dx.doi.org/10.1186/s11671-022-03686-4
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author Geng, Yanquan
Wang, Jiqiang
Li, Zihan
Yan, Yongda
Zhang, Jingran
Gan, Yang
author_facet Geng, Yanquan
Wang, Jiqiang
Li, Zihan
Yan, Yongda
Zhang, Jingran
Gan, Yang
author_sort Geng, Yanquan
collection PubMed
description Fabrication of periodic nanostructures has drawn increasing interest owing to their applications of such functional structures in optics, biomedical and power generation devices. Nano-indentation technique has been proven as a method to fabricate periodic nanostructures. In this study, the molecular dynamic simulation approach is employed to investigate the nano-indentation process for fabricating periodic nano-pit arrays using a single indenter and an indenter array. The morphologies of indentations that machined using these two kinds of indenters are compared. The indentation force and the defect evolution during the nano-indentation process are further studied. Results show that indentation morphologies obtained by single indenter are mainly depended on the spacing of indenters, and a nano-pit array with a better shape and consistency can be obtained easier using the indenter array compared with using a single indenter. The stacking faults and dislocations induced by indentation are depended on the spacing of the indenters. Our findings are significant for understanding the differences of indentation processes using a single indenter and an indenter array and machining a high-quality periodic nano-pit array with high machining efficiency. GRAPHICAL ABSTRACT: [Image: see text]
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spelling pubmed-90619312022-05-07 Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study Geng, Yanquan Wang, Jiqiang Li, Zihan Yan, Yongda Zhang, Jingran Gan, Yang Nanoscale Res Lett Nano Express Fabrication of periodic nanostructures has drawn increasing interest owing to their applications of such functional structures in optics, biomedical and power generation devices. Nano-indentation technique has been proven as a method to fabricate periodic nanostructures. In this study, the molecular dynamic simulation approach is employed to investigate the nano-indentation process for fabricating periodic nano-pit arrays using a single indenter and an indenter array. The morphologies of indentations that machined using these two kinds of indenters are compared. The indentation force and the defect evolution during the nano-indentation process are further studied. Results show that indentation morphologies obtained by single indenter are mainly depended on the spacing of indenters, and a nano-pit array with a better shape and consistency can be obtained easier using the indenter array compared with using a single indenter. The stacking faults and dislocations induced by indentation are depended on the spacing of the indenters. Our findings are significant for understanding the differences of indentation processes using a single indenter and an indenter array and machining a high-quality periodic nano-pit array with high machining efficiency. GRAPHICAL ABSTRACT: [Image: see text] Springer US 2022-05-02 /pmc/articles/PMC9061931/ /pubmed/35499607 http://dx.doi.org/10.1186/s11671-022-03686-4 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Nano Express
Geng, Yanquan
Wang, Jiqiang
Li, Zihan
Yan, Yongda
Zhang, Jingran
Gan, Yang
Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title_full Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title_fullStr Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title_full_unstemmed Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title_short Comparison of the Indentation Processes Using the Single Indenter and Indenter Array: A Molecular Dynamics Study
title_sort comparison of the indentation processes using the single indenter and indenter array: a molecular dynamics study
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9061931/
https://www.ncbi.nlm.nih.gov/pubmed/35499607
http://dx.doi.org/10.1186/s11671-022-03686-4
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