Dynamics of Fracture in Drying Suspensions

by: ER Dufresne, DJ Stark, NA Greenblatt, JX Cheng, JW Hutchinson, L Mahadevan, DA Weitz

Langmuir, Vol. 22, No. 17. (15 August 2006), pp. 7144-7147.

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DOI, American Chem. Soc. Publications

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Abstract

Abstract: We investigate the dynamics of fracture in drying films of colloidal silica. Water loss quenches the nanoparticle dispersions to form a liquid-saturated elastic network of particles that relieves drying-induced strain by cracking. These cracks display intriguing intermittent motion originating from the deformation of arrested crack tips and aging of the elastic network. The dynamics of a single crack exhibits a universal evolution, described by a balance of the driving elastic power with the sum of interfacial power and the viscous dissipation rate of flowing interstitial fluid.

@article{citeulike:2709642, abstract = {Abstract: We investigate the dynamics of fracture in drying films of colloidal silica. Water loss quenches the nanoparticle dispersions to form a liquid-saturated elastic network of particles that relieves drying-induced strain by cracking. These cracks display intriguing intermittent motion originating from the deformation of arrested crack tips and aging of the elastic network. The dynamics of a single crack exhibits a universal evolution, described by a balance of the driving elastic power with the sum of interfacial power and the viscous dissipation rate of flowing interstitial fluid.}, address = {DEAS, Department of Physics, and Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138}, author = {Dufresne, E. R. and Stark, D. J. and Greenblatt, N. A. and Cheng, J. X. and Hutchinson, J. W. and Mahadevan, L. and Weitz, D. A. }, citeulike-article-id = {2709642}, doi = {10.1021/la061251+}, journal = {Langmuir}, keywords = {drying, dynamics, film, weitz}, month = {August}, number = {17}, pages = {7144--7147}, posted-at = {2008-04-23 18:50:29}, priority = {2}, title = {Dynamics of Fracture in Drying Suspensions}, url = {http://dx.doi.org/10.1021/la061251+}, volume = {22}, year = {2006} }

RIS record

TY - JOUR ID - citeulike:2709642 L3 - citeulike-article-id:2709642 TI - Dynamics of Fracture in Drying Suspensions JF - Langmuir VL - 22 IS - 17 SP - 7144 EP - 7147 AD - DEAS, Department of Physics, and Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138 N2 - Abstract: We investigate the dynamics of fracture in drying films of colloidal silica. Water loss quenches the nanoparticle dispersions to form a liquid-saturated elastic network of particles that relieves drying-induced strain by cracking. These cracks display intriguing intermittent motion originating from the deformation of arrested crack tips and aging of the elastic network. The dynamics of a single crack exhibits a universal evolution, described by a balance of the driving elastic power with the sum of interfacial power and the viscous dissipation rate of flowing interstitial fluid. KW - drying KW - dynamics KW - film KW - weitz AU - Dufresne, ER AU - Stark, DJ AU - Greenblatt, NA AU - Cheng, JX AU - Hutchinson, JW AU - Mahadevan, L AU - Weitz, DA PY - 2006/08/15/ UR - http://dx.doi.org/10.1021/la061251+ ER -

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