Publikation: Shear-induced breaking of cages in colloidal glasses : Scattering experiments and mode coupling theory
Lade...
Dateien
Datum
2015
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Link zur Lizenz
oops
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
The Journal of Chemical Physics. 2015, 143(3), 034505. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.4926932
Zusammenfassung
We employ x-ray scattering on sheared colloidal suspensions and mode coupling theory to study structure factor distortions of glass-forming systems under shear. We find a transition from quadrupolar elastic distortion at small strains to quadrupolar and hexadecupolar modes in the stationary state. The latter are interpreted as signatures of plastic rearrangements in homogeneous, thermalized systems. From their transient evolution with strain, we identify characteristic strain and length-scale values where these plastic rearrangements dominate. This characteristic strain coincides with the maximum of the shear stress versus strain curve, indicating the proliferation of plastic flow. The hexadecupolar modes dominate at the wavevector of the principal peak of the equilibrium structure factor that is related to the cage-effect in mode coupling theory. We hence identify the structural signature of plastic flow of glasses.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Colloidal systems, Glasses Diffusion, Glass transitions, Plasticity
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690
AMANN, Christian P., Dmitry DENISOV, Minh Triet DANG, Bernd STRUTH, Peter SCHALL, Matthias FUCHS, 2015. Shear-induced breaking of cages in colloidal glasses : Scattering experiments and mode coupling theory. In: The Journal of Chemical Physics. 2015, 143(3), 034505. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.4926932BibTex
@article{Amann2015Shear-32269,
year={2015},
doi={10.1063/1.4926932},
title={Shear-induced breaking of cages in colloidal glasses : Scattering experiments and mode coupling theory},
number={3},
volume={143},
issn={0021-9606},
journal={The Journal of Chemical Physics},
author={Amann, Christian P. and Denisov, Dmitry and Dang, Minh Triet and Struth, Bernd and Schall, Peter and Fuchs, Matthias},
note={Article Number: 034505}
}RDF
<rdf:RDF
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:bibo="http://purl.org/ontology/bibo/"
xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
xmlns:foaf="http://xmlns.com/foaf/0.1/"
xmlns:void="http://rdfs.org/ns/void#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#" >
<rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/32269">
<dc:creator>Amann, Christian P.</dc:creator>
<dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-26T14:45:20Z</dcterms:available>
<dcterms:issued>2015</dcterms:issued>
<dc:creator>Dang, Minh Triet</dc:creator>
<foaf:homepage rdf:resource="http://localhost:8080/"/>
<dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-11-26T14:45:20Z</dc:date>
<dc:contributor>Struth, Bernd</dc:contributor>
<dcterms:title>Shear-induced breaking of cages in colloidal glasses : Scattering experiments and mode coupling theory</dcterms:title>
<dc:creator>Denisov, Dmitry</dc:creator>
<dc:creator>Fuchs, Matthias</dc:creator>
<dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
<dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
<dcterms:abstract xml:lang="eng">We employ x-ray scattering on sheared colloidal suspensions and mode coupling theory to study structure factor distortions of glass-forming systems under shear. We find a transition from quadrupolar elastic distortion at small strains to quadrupolar and hexadecupolar modes in the stationary state. The latter are interpreted as signatures of plastic rearrangements in homogeneous, thermalized systems. From their transient evolution with strain, we identify characteristic strain and length-scale values where these plastic rearrangements dominate. This characteristic strain coincides with the maximum of the shear stress versus strain curve, indicating the proliferation of plastic flow. The hexadecupolar modes dominate at the wavevector of the principal peak of the equilibrium structure factor that is related to the cage-effect in mode coupling theory. We hence identify the structural signature of plastic flow of glasses.</dcterms:abstract>
<dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/32269/1/Amann_2-fw2d7w9jh8el6.pdf"/>
<bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/32269"/>
<dc:contributor>Denisov, Dmitry</dc:contributor>
<dc:contributor>Amann, Christian P.</dc:contributor>
<dc:language>eng</dc:language>
<dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/32269/1/Amann_2-fw2d7w9jh8el6.pdf"/>
<dc:contributor>Dang, Minh Triet</dc:contributor>
<dc:contributor>Schall, Peter</dc:contributor>
<dc:contributor>Fuchs, Matthias</dc:contributor>
<dc:creator>Schall, Peter</dc:creator>
<void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
<dc:creator>Struth, Bernd</dc:creator>
</rdf:Description>
</rdf:RDF>Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
