# Condensation-induced roughness controls non-contact bouncing of hot drops

https://mdr.nims.go.jp/datasets/b814f6ae-6eda-4c60-895b-f5c25c24e47d

## File

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## Id

b814f6ae-6eda-4c60-895b-f5c25c24e47d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-07-01T01:34:06.739559Z

## Updated at

2026-07-01T01:49:12.505814Z

## Published at

2026-07-01T03:28:59.893902Z

## Doi



## First published url

https://doi.org/10.1016/j.newton.2026.100587

## Date published

2026-06-30

## Recorded date published

2026-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Condensation-induced roughness controls non-contact bouncing of hot drops
  title_type: original
  lang: en

## Description

- description: Droplets readily bounce on hydrophobic microtextures as they trap an
    air layer between liquid and solid, limiting contact to the structure tops and
    thereby reducing adhesion and pinning. For hot droplets condensation can fill
    the texture, forming liquid bridges that limit or prevent bouncing. Remarkably,
    bouncing can also occur on hydrophilic or wet surfaces when a thin gas layer dynamically
    cushions the droplet impact without any contact with the substrate. In this non-contact
    regime, the interplay between hot-droplet impacts, condensation, and the transient
    gas cushion remains to be clarified. Here, we investigate the impact of hot water
    droplets on lubricant-infused surfaces initially at room temperature. Using high-speed
    imaging and interferometry, we discover that the maximum contactless bouncing
    velocity decreases with increasing temperature difference ∆T between the drop
    and the surface. High-speed interferometry reveals that the transition is governed
    by rapid condensation growth (~ 1 ms) on the lubricant layer, which generates
    a liquid roughness that triggers the contact between the droplet and the substrate.
    This phenomenon vanishes for hot silicone oil droplets due to their low volatility.
    We develop a minimal model coupling condensation dynamics and thermal transfer,
    leading to a scaling law that quantitatively predicts both the critical bouncing
    velocity and the condensation bridging time. The model shows that the transition
    depends on ΔT and the substrate thermal properties, providing a predictive framework
    for hot-drop impacts in the non-contact bouncing regime.
  description_type: abstract
  lang: und

## Creator

- name: Guillaume Deschasaux
  role: author
- name: Sakura Torii
  role: author
- name: Jiaxing Shen
  role: author
- name: Yuki Serata
  role: author
- name: Pritam Kumar Roy
  role: author
- name: Mizuki Tenjimbayashi
  role: author
- name: Timothée Mouterde
  role: author
  orcid: https://orcid.org/0000-0002-1166-1723

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: droplet bouncing
  schema: not_defined
- subject: hot droplet
  schema: not_defined
- subject: condensation
  schema: not_defined
- subject: liquid infused smooth coating
  schema: not_defined
- subject: adhesion dynamics
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

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## Data origin



## Embargo



## Journal

- title: Newton
  issn: '29506360'
  article_number: '100587'

## Conference



## Related item



## Funding

- funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 47605157-90d3-41e7-bc78-daacc456bda3
  filename: 1-s2.0-S2950636026001891-main.pdf
  content_type: application/pdf
  size: 4206842
  md5: fd65d1c7d654348964e435a3ed4d55b3

## Thumbnail

fileset_id: 47605157-90d3-41e7-bc78-daacc456bda3
filename: 1-s2.0-S2950636026001891-main.pdf