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Pré-Publication, Document De Travail Année : 2023

The Phantom Glass Mystery: a transition from dry to lubricated friction

Résumé

The phantom glass is a spectacular phenomenon that occurs when a warm glass placed upside down on a wet surface starts moving on its own, as if propelled by an invisible force. We show that this spontaneous motion is the result of a transition between solid and liquid friction regimes due to a pressure increase in the glass. We reveal the existence of three phases in the dynamics of the system when the temperature of the glass is increased: Firstly, we observe an expulsion of liquid trapped inside the glass followed by a lift-off of the glass that eventually floats over a capillary bridge preventing air from escaping. Finally, when pressure is increased even further, the bridge breaks up and solid friction is restored.
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Dates et versions

hal-04047877 , version 1 (27-03-2023)

Identifiants

  • HAL Id : hal-04047877 , version 1

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Pauline E Galy, Ianis Huin-Sesnis, Lydéric Bocquet, Frédéric Chevy. The Phantom Glass Mystery: a transition from dry to lubricated friction. 2023. ⟨hal-04047877⟩
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