ArticleScientific reports2017
Nanoindentation Induced Deformation and Pop-in Events in a Silicon Crystal: Molecular Dynamics Simulation and Experiment.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Bridging experiments and defects' mechanics: a data-driven toolbox for configurational force analysis.Engineering with computers · 2026Article
- Incipient Plasticity of Si and GaAs: Review and Perspectives.Materials (Basel, Switzerland) · 2025Review
- Understanding the Nanoindentation Edge Effect of Single-Crystal Silicon Using Molecular Dynamics Simulations.Micromachines · 2025Article
- Atom's Dynamics and Crystal Structure: An Ordinal Pattern Method.The journal of physical chemistry. A · 2025Article
- The loading speed facilitating stress relaxation behaviors of surface-modified silicon: a molecular dynamics study.Journal of molecular modeling · 2022Article
- Pop-In Identification in Nanoindentation Curves with Deep Learning Algorithms.Materials (Basel, Switzerland) · 2021Article
- Reveal the Deformation Mechanism of (110) Silicon from Cryogenic Temperature to Elevated Temperature by Molecular Dynamics Simulation.Nanomaterials (Basel, Switzerland) · 2019Article
- Assessment of Nano-Indentation Method in Mechanical Characterization of Heterogeneous Nanocomposite Materials Using Experimental and Computational Approaches.Scientific reports · 2019Article
- Pop-in behavior and elastic-to-plastic transition of polycrystalline pure iron during sharp nanoindentation.Scientific reports · 2019Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Silicon has such versatile characteristics that the mechanical behavior and deformation mechanism under contact load are still unclear and hence are interesting and challenging issues. Based on combined study using molecular dynamics simulations and experiments of nanoindentation on Si(100), the versatile deformation modes, including high pressure phase transformation (HPPT), dislocation, median crack and surface crack, were found, and occurrence of multiple pop-in events in the load-indentation strain curves was reported. HPPTs are regard as the dominant deformation mode and even becomes the single deformation mode at a small indentation strain (0.107 in simulations), suggesting the presence of a defect-free region. Moreover, the one-to-one relationship between the pop-in events and the deformation modes is established. Three distinct mechanisms are identified to be responsible for the occurrence of multiple pop-in events in sequence. In the first mechanism, HPPTs from Si-I to Si-II and Si-I to bct5 induce the first pop-in event. The formation and extrusion of α-Si outside the indentation cavity are responsible for the subsequent pop-in event. And the major cracks on the surface induces the pop-in event at extreme high load. The observed dislocation burst and median crack beneath the transformation region produce no detectable pop-in events.
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