Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation
The influence of the indenter angle on the deformation mechanisms of single-crystal Si was analyzed via molecular dynamics simulations of the nanoindentation process. Three different types of diamond conical indenters with semi-angles of 45°, 60°, and 70° were used. The load–indentation depth curves...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/12/2071 |
| _version_ | 1797483785573367808 |
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| author | Young Jin Chung Gi Hun Lee Hyeon Gyu Beom |
| author_facet | Young Jin Chung Gi Hun Lee Hyeon Gyu Beom |
| author_sort | Young Jin Chung |
| collection | DOAJ |
| description | The influence of the indenter angle on the deformation mechanisms of single-crystal Si was analyzed via molecular dynamics simulations of the nanoindentation process. Three different types of diamond conical indenters with semi-angles of 45°, 60°, and 70° were used. The load–indentation depth curves were obtained by varying the indenter angles, and the structural phase transformations of single-crystal Si were observed from an atomistic view. In addition, the hardness and elastic modulus with varying indenter angles were evaluated based on the Oliver–Pharr method and Sneddon’s solution. The simulation results showed that the indenter angle had a significant effect on the load–indentation depth curves, which resulted from the strong dependence of the elastic and plastic deformation ratios on the indenter angle during indentations. |
| first_indexed | 2024-03-09T22:52:04Z |
| format | Article |
| id | doaj.art-2e03a7e1974c4f8db11fc628426d716f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T22:52:04Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2e03a7e1974c4f8db11fc628426d716f2023-11-23T18:17:04ZengMDPI AGNanomaterials2079-49912022-06-011212207110.3390/nano12122071Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during NanoindentationYoung Jin Chung0Gi Hun Lee1Hyeon Gyu Beom2Department of Mechanical Engineering, Inha University, 100 Inha-ro, Incheon 22212, KoreaDepartment of Mechanical Engineering, Inha University, 100 Inha-ro, Incheon 22212, KoreaDepartment of Mechanical Engineering, Inha University, 100 Inha-ro, Incheon 22212, KoreaThe influence of the indenter angle on the deformation mechanisms of single-crystal Si was analyzed via molecular dynamics simulations of the nanoindentation process. Three different types of diamond conical indenters with semi-angles of 45°, 60°, and 70° were used. The load–indentation depth curves were obtained by varying the indenter angles, and the structural phase transformations of single-crystal Si were observed from an atomistic view. In addition, the hardness and elastic modulus with varying indenter angles were evaluated based on the Oliver–Pharr method and Sneddon’s solution. The simulation results showed that the indenter angle had a significant effect on the load–indentation depth curves, which resulted from the strong dependence of the elastic and plastic deformation ratios on the indenter angle during indentations.https://www.mdpi.com/2079-4991/12/12/2071nanoindentationindenter anglephase transformationsiliconatomistic simulation |
| spellingShingle | Young Jin Chung Gi Hun Lee Hyeon Gyu Beom Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation Nanomaterials nanoindentation indenter angle phase transformation silicon atomistic simulation |
| title | Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation |
| title_full | Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation |
| title_fullStr | Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation |
| title_full_unstemmed | Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation |
| title_short | Atomistic Insights into the Phase Transformation of Single-Crystal Silicon during Nanoindentation |
| title_sort | atomistic insights into the phase transformation of single crystal silicon during nanoindentation |
| topic | nanoindentation indenter angle phase transformation silicon atomistic simulation |
| url | https://www.mdpi.com/2079-4991/12/12/2071 |
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