Mechanics of colloidal supraparticles under compression

Simple item page
dc.date.accessioned2023-07-24T14:03:02Z
dc.date.available2023-07-24T14:03:02Z
dc.date.issued2021-10-13
dc.description.sponsorshipThis project was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 416229255—SFB 1411.ger
dc.identifierdoi:10.17170/kobra-202307198404
dc.identifier.urihttp://hdl.handle.net/123456789/14919
dc.language.isoeng
dc.relation.doidoi:10.1126/sciadv.abj0954
dc.relation.projectid416229255—SFB 1411
dc.rightsNamensnennung-Nicht-kommerziell 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subject.ddc620
dc.subject.ddc660
dc.subject.swdPartikelger
dc.subject.swdSupramolekülger
dc.subject.swdMechanische Eigenschaftger
dc.subject.swdDeformationsverhaltenger
dc.titleMechanics of colloidal supraparticles under compressioneng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractColloidal supraparticles are finite, spherical assemblies of many primary particles. To take advantage of their emergent functionalities, such supraparticles must retain their structural integrity. Here, we investigate their size-dependent mechanical properties via nanoindentation. We find that the deformation resistance inversely scales with the primary particle diameter, while the work of deformation is dependent on the supraparticle diameter. We adopt the Griffith theory to such particulate systems to provide a predictive scaling to relate the fracture stress to the geometry of supraparticles. The interplay between primary particle material and cohesive interparticle forces dictates the mechanical properties of supraparticles. We find that enhanced stability, associated with ductile fracture, can be achieved if supraparticles are engineered to dissipate more energy via deformation of primary particles than breaking of interparticle bonds. Our work provides a coherent framework to analyze, predict, and design the mechanical properties of colloidal supraparticles.eng
dcterms.accessRightsopen access
dcterms.creatorWang, Junwei
dcterms.creatorSchwenger, Jan
dcterms.creatorStröbel, Andreas
dcterms.creatorFeldner, Patrick
dcterms.creatorHerre, Patrick
dcterms.creatorRomeis, Stefan
dcterms.creatorPeukert, Wolfgang
dcterms.creatorMerle, Benoit
dcterms.creatorVogel, Nicolas
dcterms.source.articlenumbereabj0954
dcterms.source.identifiereissn:2375-2548
dcterms.source.issueIssue 42
dcterms.source.journalScience Advanceseng
dcterms.source.volumeVolume 7
kup.iskupfalse

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
WangSchwengerHerreMerleVogelMechanicsOfColloidalSupraparticles.pdf
Size:
1.08 MB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.03 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Publikationen