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Compressive behavior and connecting topology of monolithic nanoporous niobium
Citation Link: https://doi.org/10.15480/882.13788
Publikationstyp
Journal Article
Date Issued
2024-11-07
Sprache
English
TORE-DOI
Journal
Volume
13
Issue
1
Start Page
76
End Page
85
Citation
Materials Research Letters 13 (1): 76-85 (2025)
Publisher DOI
Scopus ID
Publisher
Taylor & Francis
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.
Subjects
Dealloying | mechanical behavior | nanoporous | niobium | tomography
DDC Class
620.1: Engineering Mechanics and Materials Science
530: Physics
620.5: Nanotechnology
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