Microscopic ergodicity breaking governs the emergence and evolution of elasticity in glass-forming nanoclay suspensions

Physical Review. E
Yihao ChenRobert L Leheny

Abstract

We report a study combining x-ray photon correlation spectroscopy (XPCS) with in situ rheology to investigate the microscopic dynamics and mechanical properties of aqueous suspensions of the synthetic hectorite clay Laponite, which is composed of charged, nanometer-scale, disk-shaped particles. The suspensions, with particle concentrations ranging from 3.25 to 3.75 wt %, evolve over time from a fluid to a soft glass that displays aging behavior. The XPCS measurements characterize the localization of the particles during the formation and aging of the soft-glass state. The fraction of localized particles, f_{0}, increases rapidly during the early formation stage and grows more slowly during subsequent aging, while the characteristic localization length r_{loc} steadily decreases. Despite the strongly varying rates of aging at different concentrations, both f_{0} and r_{loc} scale with the elastic shear modulus G^{'} in a manner independent of concentration. During the later aging stage, the scaling between r_{loc} and G^{'} agrees quantitatively with a prediction of naive mode coupling theory. Breakdown of agreement with the theory during the early formation stage indicates the prevalence of dynamic heterogeneity, suggesting the...Continue Reading

References

May 3, 1993·Physical Review Letters· van Megen W, S M Underwood
Oct 2, 1995·Physical Review Letters·T G Mason, D A Weitz
Jun 17, 1996·Physical Review Letters·F PignonA Magnin
Jun 21, 2001·Physical Review Letters·P N SegrèD A Weitz
Aug 11, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·B AbouJ Meunier
Apr 12, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M BellourJ-P Munch
Jul 23, 2004·The Journal of Chemical Physics·Yeng-Long Chen, Kenneth S Schweizer
Dec 17, 2004·Physical Review Letters·R BandyopadhyayR L Leheny
Mar 24, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hajime TanakaDaniel Bonn
Jan 25, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·B RuzickaG Ruocco
Feb 21, 2006·Physical Review Letters·Peter J LuDavid A Weitz
Apr 12, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F SchosselerJ P Munch
Oct 13, 2007·Physical Review Letters·Sara Jabbari-FaroujiDaniel Bonn
Nov 6, 2007·The Journal of Chemical Physics·Kenneth S Schweizer, Galina Yatsenko
May 24, 2008·Nature·Peter J LuDavid A Weitz
Oct 15, 2008·Physical Review Letters·V A MartinezW van Megen
Mar 5, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S Jabbari-FaroujiDaniel Bonn
Sep 28, 2010·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hongyu GuoRobert L Leheny
Aug 19, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·F Scheffold, T G Mason
Oct 28, 2011·The Journal of Chemical Physics·Hongyu GuoRobert L Leheny
Jul 14, 2012·Reports on Progress in Physics·Gary L Hunter, Eric R Weeks
Oct 13, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·A Shahin, Yogesh M Joshi
Dec 12, 2012·Physical Review Letters·Christian L KlixPeter Keim
May 18, 2013·Physical Review Letters·Alessio Zaccone, Eugene M Terentjev
Jun 3, 2014·Nature Communications·Roberta AngeliniBarbara Ruzicka
Sep 13, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hajime Yoshino, Francesco Zamponi
Nov 20, 2014·Soft Matter·Flavio Augusto de Melo MarquesBarbara Ruzicka
Jan 31, 2015·Physical Review Letters·Elijah Flenner, Grzegorz Szamel
Aug 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Atsushi Ikeda, Ludovic Berthier
Jun 15, 2017·Soft Matter·N Mahmoudi, A Stradner
May 16, 2018·Physical Review. E·Adrian-Marie PhilippeLuca Cipelletti
Jul 7, 2018·Journal of Synchrotron Radiation·Faisal KhanAlec Sandy
Sep 6, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Khushboo Suman, Yogesh M Joshi

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