Spherical indentation response of a Ni double gyroid nanolattice
The effect of indentation strain εi upon hardness H and elastic modulus E of a Ni Double Gyroid (DG) nanolattice was investigated using a spherically-tipped nanoindenter. H remains invariant, while E decreases linearly, with increasing εi. Results reveal the progressive collapse of the DG lattice be...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/162008 |
| _version_ | 1811691459122823168 |
|---|---|
| author | Prusty, R. K. Narayan, R. L. Scherer, M. Steiner, U. Deshpande, V. S. Fleck, N. A. Ramamurty, Upadrasta |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Prusty, R. K. Narayan, R. L. Scherer, M. Steiner, U. Deshpande, V. S. Fleck, N. A. Ramamurty, Upadrasta |
| author_sort | Prusty, R. K. |
| collection | NTU |
| description | The effect of indentation strain εi upon hardness H and elastic modulus E of a Ni Double Gyroid (DG) nanolattice was investigated using a spherically-tipped nanoindenter. H remains invariant, while E decreases linearly, with increasing εi. Results reveal the progressive collapse of the DG lattice beneath the indenter. The measured values of H and extrapolated value of E at εi = 0 were used to estimate the yield strength and elastic modulus of the Ni cell walls. The latter was compared with the ideal strength of Ni, nanocrystalline films and of sub-100 nm diameter single crystals. |
| first_indexed | 2024-10-01T06:20:13Z |
| format | Journal Article |
| id | ntu-10356/162008 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:20:13Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1620082022-09-29T04:32:55Z Spherical indentation response of a Ni double gyroid nanolattice Prusty, R. K. Narayan, R. L. Scherer, M. Steiner, U. Deshpande, V. S. Fleck, N. A. Ramamurty, Upadrasta School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Cellular Material Nanoindentation The effect of indentation strain εi upon hardness H and elastic modulus E of a Ni Double Gyroid (DG) nanolattice was investigated using a spherically-tipped nanoindenter. H remains invariant, while E decreases linearly, with increasing εi. Results reveal the progressive collapse of the DG lattice beneath the indenter. The measured values of H and extrapolated value of E at εi = 0 were used to estimate the yield strength and elastic modulus of the Ni cell walls. The latter was compared with the ideal strength of Ni, nanocrystalline films and of sub-100 nm diameter single crystals. 2022-09-29T04:32:54Z 2022-09-29T04:32:54Z 2020 Journal Article Prusty, R. K., Narayan, R. L., Scherer, M., Steiner, U., Deshpande, V. S., Fleck, N. A. & Ramamurty, U. (2020). Spherical indentation response of a Ni double gyroid nanolattice. Scripta Materialia, 188, 64-68. https://dx.doi.org/10.1016/j.scriptamat.2020.07.011 1359-6462 https://hdl.handle.net/10356/162008 10.1016/j.scriptamat.2020.07.011 2-s2.0-85087948297 188 64 68 en Scripta Materialia © 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Cellular Material Nanoindentation Prusty, R. K. Narayan, R. L. Scherer, M. Steiner, U. Deshpande, V. S. Fleck, N. A. Ramamurty, Upadrasta Spherical indentation response of a Ni double gyroid nanolattice |
| title | Spherical indentation response of a Ni double gyroid nanolattice |
| title_full | Spherical indentation response of a Ni double gyroid nanolattice |
| title_fullStr | Spherical indentation response of a Ni double gyroid nanolattice |
| title_full_unstemmed | Spherical indentation response of a Ni double gyroid nanolattice |
| title_short | Spherical indentation response of a Ni double gyroid nanolattice |
| title_sort | spherical indentation response of a ni double gyroid nanolattice |
| topic | Engineering::Mechanical engineering Cellular Material Nanoindentation |
| url | https://hdl.handle.net/10356/162008 |
| work_keys_str_mv | AT prustyrk sphericalindentationresponseofanidoublegyroidnanolattice AT narayanrl sphericalindentationresponseofanidoublegyroidnanolattice AT schererm sphericalindentationresponseofanidoublegyroidnanolattice AT steineru sphericalindentationresponseofanidoublegyroidnanolattice AT deshpandevs sphericalindentationresponseofanidoublegyroidnanolattice AT fleckna sphericalindentationresponseofanidoublegyroidnanolattice AT ramamurtyupadrasta sphericalindentationresponseofanidoublegyroidnanolattice |