Mechanical performance of amorphous diamond-like carbon nanowires

Simple item page
dc.contributor.authorRoco, Fiorella R.
dc.contributor.authorClark, J.
dc.contributor.authorAllende, S.
dc.contributor.authorSoto, W.
dc.contributor.authorAmigo, N.
dc.contributor.authorFigueroa, J.
dc.contributor.authorBringa, Eduardo M.
dc.contributor.authorValencia, Felipe J.
dc.date.accessioned2025-01-20T16:08:36Z
dc.date.available2025-01-20T16:08:36Z
dc.date.issued2024
dc.description.abstractAmorphous carbon nanowires (NW) are a fundamental piece in the study of novel nanoarchitectures with unexpected mechanical properties. However, the failure mechanism of amorphous carbon NW is still missing. In this study, classical molecular dynamics was employed to conduct stress-strain tests to address the mechanical response of amorphous carbons NW with different radii. This research characterizes the mechanical properties of aC NW with different sp(3) contents, including Youngs modulus and ultimate tensile stress. Our study reveals that plastic deformation is mediated by chemical modifications in carbon bonding, leading to transitions from sp(2) to sp(3) and vice versa. We observed that denser amorphous carbon materials undergo a transition from sp(3) to sp(2) bonding prior to failure, facilitated by the recombination of sp(2) clusters. Additionally, plastic deformation in amorphous carbon NW is facilitated by the formation of shear transformation zones and nanovoids, with the deformation mechanism strongly dependent on the average coordination of carbon atoms. These insights provide valuable information for designing nanomaterials with tailored mechanical properties.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.diamond.2024.111546
dc.identifier.eissn1879-0062
dc.identifier.issn0925-9635
dc.identifier.urihttps://doi.org/10.1016/j.diamond.2024.111546
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90091
dc.identifier.wosidWOS:001313175200001
dc.language.isoen
dc.revistaDiamond and related materials
dc.rightsacceso restringido
dc.subjectAmorphous carbon
dc.subjectPlasticity
dc.subjectMolecular dynamics
dc.subjectNanowires
dc.subjectMechanical properties
dc.titleMechanical performance of amorphous diamond-like carbon nanowires
dc.typeartículo
dc.volumen149
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas