A molecular dynamics simulation study on the role of graphene in enhancing the arc erosion resistance of Cu metal matrix
dc.contributor.author | Xu, R | |
dc.contributor.author | Zhou, M | |
dc.contributor.author | Wang, X | |
dc.contributor.author | Matharage, SY | |
dc.contributor.author | Yan, JD | |
dc.contributor.author | Connolly, A | |
dc.contributor.author | Luo, Y | |
dc.contributor.author | Ding, Y | |
dc.contributor.author | Wang, Z | |
dc.date.accessioned | 2022-05-30T06:30:40Z | |
dc.date.issued | 2022-06-11 | |
dc.date.updated | 2022-05-27T18:38:13Z | |
dc.description.abstract | Molecular dynamics simulation has been applied to study the mechanisms through which graphene protects Cu from arc erosion in Cu-W arcing contacts. The impact of arc erosion has been simplified as positive ion bombardments on a cathode surface. Sulphur ions were used as incident ions while the number of ions, incident energy, and incident area varied during the simulations. Cu covered by a graphene layer had fewer vacancies and sputtered atoms than in the pure Cu system. Results show that the graphene layer can dissipate the energy transferred from incident ions by a shock wave, and also prevent recoiled Cu atoms from penetrating the graphene layer resulting in better arc erosion performances than in the pure Cu system. For both models, the sputtering yield gradually decreases and maintains a very low value as the number of incident ions increases. Similar to the experimental results, the residual erosion crater on the Cu surface covered by graphene was shallower than that without a graphene layer. | en_GB |
dc.description.sponsorship | State Grid Corporation of China science and technology Foundation | en_GB |
dc.identifier.citation | Vol. 212, article 111549 | en_GB |
dc.identifier.doi | 10.1016/j.commatsci.2022.111549 | |
dc.identifier.grantnumber | 5500-201958505A-0-0-00 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/129757 | |
dc.identifier | ORCID: 0000-0001-6039-8127 (Matharage, Bangama Senasingha Hewa MSY) | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.rights | © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | en_GB |
dc.subject | Molecular dynamics simulation | en_GB |
dc.subject | Metal matrix composites | en_GB |
dc.subject | Circuit breaker | en_GB |
dc.subject | Arc erosion | en_GB |
dc.subject | Ion bombardment | en_GB |
dc.subject | Graphene reinforcement mechanisms | en_GB |
dc.title | A molecular dynamics simulation study on the role of graphene in enhancing the arc erosion resistance of Cu metal matrix | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2022-05-30T06:30:40Z | |
dc.identifier.issn | 0927-0256 | |
dc.description | This is the final version. Available on open access from Elsevier via the DOI in this record | en_GB |
dc.identifier.journal | Computational Materials Science | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_GB |
dcterms.dateAccepted | 2022-05-22 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2022-05-22 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2022-05-27T18:38:15Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2022-07-05T10:38:52Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).