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Enabling Sequential Rupture for Lowering Atomistic Ice Adhesion

Abstract

State-of-the-art passive icephobicity relies mainly on static parameters such as surface energy, coating elastic modulus, crack sizes and so on. Low ice adhesion resulting from dynamic de-icing process, for instance ice detaching modes from substrates, has not yet been explored. In the current study, atomistic modeling and molecular dynamics simulations were employed to identify ice rupture modes as crucial dynamic factors for surface icephobicity. A fish-scale-like icephobic surface prototype enabling low-adhesion sequential rupture of the atomistic interactions at the ice-solid interface was proposed. The novel surface has an intrinsic extended interface rupture pathway, which can lead to a ~60% reduction in atomistic ice adhesion compared with concurrent ice rupture. This study sheds light on interface mechanical design for surface icephobicity, and could provide solutions for anti-icing, nanoscale tribology and many others. The concept of implementing interfacial rupture modes proposed in this study can also apply to interface design for tailored adhesion mechanics.

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Supplementary files

Publication details

The article was received on 04 Jan 2019, accepted on 12 Aug 2019 and first published on 14 Aug 2019


Article type: Communication
DOI: 10.1039/C9NR00104B
Nanoscale, 2019, Accepted Manuscript

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    Enabling Sequential Rupture for Lowering Atomistic Ice Adhesion

    S. Xiao, B. Skallerud, F. Wang, Z. Zhang and J. He, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C9NR00104B

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