Artikel ; Online: Separating Geometric and Diffusive Contributions to the Surface Nucleation of Dislocations in Nanoparticles.
ACS nano
2024 Band 18, Heft 5, Seite(n) 4170–4179
Abstract: While metal nanoparticles are widely used, their small size makes them mechanically unstable. Extensive prior research has demonstrated that nanoparticles with sizes in the range of 10-50 nm fail by the surface nucleation of dislocations, which is a ... ...
Abstract | While metal nanoparticles are widely used, their small size makes them mechanically unstable. Extensive prior research has demonstrated that nanoparticles with sizes in the range of 10-50 nm fail by the surface nucleation of dislocations, which is a thermally activated process. Two different contributions have been suggested to cause the weakening of smaller particles: first, geometric effects such as increased surface curvature reduce the barrier for dislocation nucleation; second, surface diffusion happens faster on smaller particles, thus accelerating the formation of surface kinks which nucleate dislocations. These two factors are difficult to disentangle. Here we use |
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Sprache | Englisch |
Erscheinungsdatum | 2024-01-26 |
Erscheinungsland | United States |
Dokumenttyp | Journal Article |
ISSN | 1936-086X |
ISSN (online) | 1936-086X |
DOI | 10.1021/acsnano.3c09026 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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