Compressive behavior and connecting topology of monolithic nanoporous niobium
With an eye on the role of structure size and topology, this study explores the mechanical behavior of nanoporous (NP) Nb made by liquid-metal dealloying. Results from X-ray nanotomography and macro-compression tests confirm that coarsening degrades the yield strength and that Young's modulus d...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-01-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2024.2421867 |
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| author | Seoyun Sohn Shan Shi Jürgen Markmann Stefan Alexander Berger Jörg Weissmüller |
| author_facet | Seoyun Sohn Shan Shi Jürgen Markmann Stefan Alexander Berger Jörg Weissmüller |
| author_sort | Seoyun Sohn |
| collection | DOAJ |
| description | With an eye on the role of structure size and topology, this study explores the mechanical behavior of nanoporous (NP) Nb made by liquid-metal dealloying. Results from X-ray nanotomography and macro-compression tests confirm that coarsening degrades the yield strength and that Young's modulus deviates from scaling laws developed for NP Au made by dealloying in aqueous media. We find that the scaled genus of NP Nb is lower than what has been reported for NP Au, and this low connectivity provides an obvious explanation for the low modulus. Furthermore, the structural dispersion implies that additional structural descriptors should be acknowledged. |
| format | Article |
| id | doaj-art-e9dfe1d7a3fd466eb01e3769284ad8ed |
| institution | Kabale University |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-e9dfe1d7a3fd466eb01e3769284ad8ed2025-01-08T06:03:50ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-01-01131768510.1080/21663831.2024.2421867Compressive behavior and connecting topology of monolithic nanoporous niobiumSeoyun Sohn0Shan Shi1Jürgen Markmann2Stefan Alexander Berger3Jörg Weissmüller4Institute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Geesthacht, GermanyInstitute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Geesthacht, GermanyInstitute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Geesthacht, GermanyInstitute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Geesthacht, GermanyInstitute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Geesthacht, GermanyWith an eye on the role of structure size and topology, this study explores the mechanical behavior of nanoporous (NP) Nb made by liquid-metal dealloying. Results from X-ray nanotomography and macro-compression tests confirm that coarsening degrades the yield strength and that Young's modulus deviates from scaling laws developed for NP Au made by dealloying in aqueous media. We find that the scaled genus of NP Nb is lower than what has been reported for NP Au, and this low connectivity provides an obvious explanation for the low modulus. Furthermore, the structural dispersion implies that additional structural descriptors should be acknowledged.https://www.tandfonline.com/doi/10.1080/21663831.2024.2421867Dealloyingnanoporousniobiummechanical behaviortomography |
| spellingShingle | Seoyun Sohn Shan Shi Jürgen Markmann Stefan Alexander Berger Jörg Weissmüller Compressive behavior and connecting topology of monolithic nanoporous niobium Materials Research Letters Dealloying nanoporous niobium mechanical behavior tomography |
| title | Compressive behavior and connecting topology of monolithic nanoporous niobium |
| title_full | Compressive behavior and connecting topology of monolithic nanoporous niobium |
| title_fullStr | Compressive behavior and connecting topology of monolithic nanoporous niobium |
| title_full_unstemmed | Compressive behavior and connecting topology of monolithic nanoporous niobium |
| title_short | Compressive behavior and connecting topology of monolithic nanoporous niobium |
| title_sort | compressive behavior and connecting topology of monolithic nanoporous niobium |
| topic | Dealloying nanoporous niobium mechanical behavior tomography |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2024.2421867 |
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