Molecular Dynamics Analysis of Subsurface Brittleness Mechanism of Nanocrystalline 3C-SiC Rough Friction Surface

Molecular Dynamics Analysis of Subsurface Brittleness Mechanism of Nanocrystalline 3C-SiC Rough Friction Surface | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Molecular Dynamics Analysis of Subsurface Brittleness Mechanism of Nanocrystalline 3C-SiC Rough Friction Surface Xiang Ning, Nanxing Wu, Rumeng Zhang, Dongliang Liu, Xiang Wang, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3887875/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 05 Aug, 2024 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract To study the effect of polycrystalline 3C-SiC rough friction surface on the mechanism of subsurface brittleness during nanocrystalline grinding. The mechanism of subsurface brittleness in the nano-grinding process of polycrystalline 3C-SiC friction surface is analyzed by molecular dynamics method. Combined with the characteristics of polycrystalline grains constructed by Voronoi method, the initial grinding model of rough friction surface polycrystalline 3C-SiC and diamond abrasive particles is constructed. The processing mechanism of 3C-SiC is analyzed by post-processing methods such as dislocation defect analysis, atomic arrangement analysis and stress analysis. At 2.6nm, "stress concentration" occurs between the abrasive particles and the workpiece, forming a "heart-shaped" force shape. The larger the grain size, the smaller the crystal hardness, the greater the possibility of crystal fracture, and it is obvious in the larger crystal size, crystal fracture and vacancy at 8nm. The results show that the rough friction surface of polycrystalline 3C-SiC helps to reduce the damage deformation of the subsurface, and the crossing mechanism between grain and grain boundary can also effectively improve the damage of the subsurface. Physical sciences/Materials science Physical sciences/Nanoscience and technology Polycrystalline 3C-SiC rough friction surface Tessoff-Vashista coupling potential function Relaxation polymorphic transition equation System integrity calculation method Mechanism of subsurface brittleness Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 05 Aug, 2024 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 14 May, 2024 Reviews received at journal 02 May, 2024 Reviewers agreed at journal 24 Apr, 2024 Reviews received at journal 11 Mar, 2024 Reviewers agreed at journal 01 Mar, 2024 Reviewers invited by journal 01 Mar, 2024 Editor assigned by journal 01 Mar, 2024 Editor invited by journal 29 Feb, 2024 Submission checks completed at journal 29 Feb, 2024 First submitted to journal 22 Jan, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3887875","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":276066657,"identity":"bb1be193-a79f-4ecc-817e-f5385accb2ea","order_by":0,"name":"Xiang Ning","email":"","orcid":"","institution":"Jingdezhen Ceramic University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Xiang","middleName":"","lastName":"Ning","suffix":""},{"id":276066658,"identity":"9ba79b0d-1d36-4a9e-939d-c6840b06caac","order_by":1,"name":"Nanxing 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The mechanism of subsurface brittleness in the nano-grinding process of polycrystalline 3C-SiC friction surface is analyzed by molecular dynamics method. Combined with the characteristics of polycrystalline grains constructed by Voronoi method, the initial grinding model of rough friction surface polycrystalline 3C-SiC and diamond abrasive particles is constructed. The processing mechanism of 3C-SiC is analyzed by post-processing methods such as dislocation defect analysis, atomic arrangement analysis and stress analysis. At 2.6nm, \"stress concentration\" occurs between the abrasive particles and the workpiece, forming a \"heart-shaped\" force shape. The larger the grain size, the smaller the crystal hardness, the greater the possibility of crystal fracture, and it is obvious in the larger crystal size, crystal fracture and vacancy at 8nm. The results show that the rough friction surface of polycrystalline 3C-SiC helps to reduce the damage deformation of the subsurface, and the crossing mechanism between grain and grain boundary can also effectively improve the damage of the subsurface.\u003c/p\u003e","manuscriptTitle":"Molecular Dynamics Analysis of Subsurface Brittleness Mechanism of Nanocrystalline 3C-SiC Rough Friction Surface","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-03-04 04:34:53","doi":"10.21203/rs.3.rs-3887875/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-05-14T05:18:04+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-05-02T09:16:35+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"2303445d-f051-48d9-a645-70163e3ea239","date":"2024-04-24T14:57:39+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-03-12T01:43:14+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"de572eca-4686-4948-aed4-6bc09ded1b33","date":"2024-03-01T15:44:50+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-03-01T15:35:43+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-03-01T15:19:59+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2024-02-29T16:06:26+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-02-29T16:02:25+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2024-01-22T12:06:53+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"66198941-6efd-4dd8-a25e-c23a2c5db7c5","owner":[],"postedDate":"March 4th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":29099850,"name":"Physical sciences/Materials science"},{"id":29099851,"name":"Physical sciences/Nanoscience and technology"}],"tags":[],"updatedAt":"2024-08-08T13:54:14+00:00","versionOfRecord":{"articleIdentity":"rs-3887875","link":"https://doi.org/10.1038/s41598-024-68933-3","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2024-08-06 00:00:00","publishedOnDateReadable":"August 6th, 2024"},"versionCreatedAt":"2024-03-04 04:34:53","video":"","vorDoi":"10.1038/s41598-024-68933-3","vorDoiUrl":"https://doi.org/10.1038/s41598-024-68933-3","workflowStages":[]},"version":"v1","identity":"rs-3887875","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3887875","identity":"rs-3887875","version":["v1"]},"buildId":"7rjqhiLT3MXkJMwkYKINL","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}