Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing

S.R. Waitukaitis, A. Zuiderwijk, A. Souslov, C. Coulais, M. Van Hecke, Nature Physics 13 (2017) 1095–1099.


Journal Article | Published | English
Author
Waitukaitis, Scott RIST Austria ; Zuiderwijk, Antal; Souslov, Anton; Coulais, Corentin; Van Hecke, Martin
Abstract
The Leidenfrost effect occurs when an object near a hot surface vaporizes rapidly enough to lift itself up and hover. Although well understood for liquids and stiff sublimable solids, nothing is known about the effect with materials whose stiffness lies between these extremes. Here we introduce a new phenomenon that occurs with vaporizable soft solids - the elastic Leidenfrost effect. By dropping hydrogel spheres onto hot surfaces we find that, rather than hovering, they energetically bounce several times their diameter for minutes at a time. With high-speed video during a single impact, we uncover high-frequency microscopic gap dynamics at the sphere/substrate interface. We show how these otherwise-hidden agitations constitute work cycles that harvest mechanical energy from the vapour and sustain the bouncing. Our findings suggest a new strategy for injecting mechanical energy into a widely used class of soft materials, with potential relevance to fields such as active matter, soft robotics and microfluidics.
Publishing Year
Date Published
2017-07-24
Journal Title
Nature Physics
Acknowledgement
A.S. acknowledges funding from the Delta Institute for Theoretical Physics and the hospitality of the IBS Center for Theoretical Physics of Complex Systems, Daejeon, South Korea. We acknowledge funding from the Netherlands Organisation for Scientific Research through grants VICI No. NWO-680-47-609 (M.v.H. and S.R.W.), VENI No. NWO-680-47-445 (C.C.) and VENI No. NWO-680-47-453 (S.R.W.).
Volume
13
Issue
11
Page
1095 - 1099
IST-REx-ID
123

Cite this

Waitukaitis SR, Zuiderwijk A, Souslov A, Coulais C, Van Hecke M. Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing. Nature Physics. 2017;13(11):1095-1099. doi:10.1038/nphys4194
Waitukaitis, S. R., Zuiderwijk, A., Souslov, A., Coulais, C., & Van Hecke, M. (2017). Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing. Nature Physics, 13(11), 1095–1099. https://doi.org/10.1038/nphys4194
Waitukaitis, Scott R, Antal Zuiderwijk, Anton Souslov, Corentin Coulais, and Martin Van Hecke. “Coupling the Leidenfrost Effect and Elastic Deformations to Power Sustained Bouncing.” Nature Physics 13, no. 11 (2017): 1095–99. https://doi.org/10.1038/nphys4194.
S. R. Waitukaitis, A. Zuiderwijk, A. Souslov, C. Coulais, and M. Van Hecke, “Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing,” Nature Physics, vol. 13, no. 11, pp. 1095–1099, 2017.
Waitukaitis SR, Zuiderwijk A, Souslov A, Coulais C, Van Hecke M. 2017. Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing. Nature Physics. 13(11), 1095–1099.
Waitukaitis, Scott R., et al. “Coupling the Leidenfrost Effect and Elastic Deformations to Power Sustained Bouncing.” Nature Physics, vol. 13, no. 11, Nature Publishing Group, 2017, pp. 1095–99, doi:10.1038/nphys4194.
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