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000826115 037__ $$aFZJ-2017-00375
000826115 041__ $$aEnglish
000826115 1001_ $$0P:(DE-Juel1)130797$$aLettinga, M.P.$$b0$$eCorresponding author$$ufzj
000826115 1112_ $$aInternational Conference on Rheology and Fluid Mechanics$$cAlicante$$d2016-11-10 - 2016-11-11$$wSpain
000826115 245__ $$aAnomalous response of nematic platelets under LAOStress and strain revealed by 3D Rheo-SAXS
000826115 260__ $$c2016
000826115 3367_ $$033$$2EndNote$$aConference Paper
000826115 3367_ $$2DataCite$$aOther
000826115 3367_ $$2BibTeX$$aINPROCEEDINGS
000826115 3367_ $$2DRIVER$$aconferenceObject
000826115 3367_ $$2ORCID$$aLECTURE_SPEECH
000826115 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1484316378_19384$$xPlenary/Keynote
000826115 520__ $$aDispersions of colloidal Gibbsite platelets in the nematic phase display a complex response to large amplitude oscillatory shear (LAOS) flow that strongly depends on the strain amplitude. In this work, we applied LAOStress and LAOStrain to the nematic dispersion and probed the structure with time-resolved SAXS measurements. By using plate-plate and couette geometry, we had access to both the flow-vorticity and flow-gradient plane, respectively. Thus we obtained the full 3D rotational motion of the director. For LAOStress, we observed strong asymmetrical behavior both in the rheological and the microscopic response. This asymmetry is connected to the yielding behavior of the platelets. By increasing the stress amplitude we observed that the response becomes more symmetric; however, this strongly depends on the frequency, hence the time necessary for the system to yield. Softening of the response towards the center of the gap was observed by scanning the gap while performing LAOStrain. The structural response at low strain amplitude does not propagate throughout the gap, whereas at high strain amplitudes the response in the bulk emerges as erratic.
000826115 536__ $$0G:(DE-HGF)POF3-551$$a551 - Functional Macromolecules and Complexes (POF3-551)$$cPOF3-551$$fPOF III$$x0
000826115 909CO $$ooai:juser.fz-juelich.de:826115$$pVDB
000826115 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130797$$aForschungszentrum Jülich$$b0$$kFZJ
000826115 9131_ $$0G:(DE-HGF)POF3-551$$1G:(DE-HGF)POF3-550$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lBioSoft – Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences$$vFunctional Macromolecules and Complexes$$x0
000826115 9141_ $$y2016
000826115 915__ $$0StatID:(DE-HGF)0550$$2StatID$$aNo Authors Fulltext
000826115 920__ $$lyes
000826115 9201_ $$0I:(DE-Juel1)ICS-3-20110106$$kICS-3$$lWeiche Materie $$x0
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000826115 980__ $$aVDB
000826115 980__ $$aUNRESTRICTED
000826115 980__ $$aI:(DE-Juel1)ICS-3-20110106