Resolving structural modifications of colloidal glasses by combining x-ray scattering and rheology

Glasses have liquid-like structure, but exhibit solid-like properties. A central question concerns the relation between the structure and mechanical properties of glasses, but structural changes remain difficult to resolve. We use a novel combination of rheology and x-ray scattering to resolve struc...

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Bibliographic Details
Published in:Scientific reports 2013-04, Vol.3 (1), p.1631-1631, Article 1631
Main Authors: Denisov, D., Dang, M. T., Struth, B., Wegdam, G., Schall, P.
Format: Article
Language:English
Subjects:
639/301/923/1029
639/301/923/218
639/624/400/1106
639/766/119/1002
Humanities and Social Sciences
Mechanical properties
multidisciplinary
Rheology
Science
X-ray scattering
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Summary:Glasses have liquid-like structure, but exhibit solid-like properties. A central question concerns the relation between the structure and mechanical properties of glasses, but structural changes remain difficult to resolve. We use a novel combination of rheology and x-ray scattering to resolve structural changes in colloidal glasses and link them directly to their mechanical behavior. By combining stress and structure factor measurements, we resolve shear induced changes in the nearest neighbor configuration as a function of applied stress, allowing us to elucidate the structural origin of the genuine shear banding transition of glasses.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep01631