"Increasing aspect ratio of particles suppresses buckling in shells for" by Ahmed Al Harraq and Bhuvnesh Bharti

Faculty Publications

Title

Increasing aspect ratio of particles suppresses buckling in shells formed by drying suspensions

Authors

Ahmed Al Harraq, Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA. bbharti@lsu.edu.
Bhuvnesh Bharti

Document Type

Article

Publication Date

11-4-2020

Abstract

Solvent evaporation in unpinned droplets of colloidal suspensions leads to the formation of porous shells which buckle under the pressure differential imposed by drying. We investigate the role of aspect ratio of rod-shaped particles in suppressing such buckling instabilities. Longer, thinner rods pack into permeable shells with consequently lower Darcy's pressure and thus avoid buckling.

Publication Source (Journal or Book title)

Soft matter

First Page

9643

Last Page

9647

Recommended Citation

Al Harraq, A., & Bharti, B. (2020). Increasing aspect ratio of particles suppresses buckling in shells formed by drying suspensions. Soft matter, 16 (42), 9643-9647. https://doi.org/10.1039/d0sm01467b

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