Understanding Interfacial Ice Premelting: Structure, Adhesion, and Nucleation

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: 129(9), P. 4614 - 4631

Published: Feb. 21, 2025

The interface of ice with solids plays an exceptionally important role on a wide variety natural phenomena, such as the melting permafrost, sliding glaciers or frost heaving, well many technological applications windmills, car tires, aircrafts. In this work, we perform systematic computer simulation study premelting and explore thickness structure quasi-liquid layers formed at substrates different hydrophilicities. Our shows that interfacial occurs systematically neutral whatever hydrophilicity, forming films limited for contact angles larger than ca. 50° but exhibiting complete smaller angles. Contrary to most experimental studies, focus not only behavior temperature, also pressure, which is matter relevance in situations friction. cast within rigorous framework surface thermodynamics, allows us show film function single thermodynamic variable. By token are able relate properties measured along isobar, arbitrary temperature pressure. results exploited adhesion, view understanding icephobicity. We find adhesion strength atomically smooth surfaces 1 2 orders magnitude those found experiments, conjecture reason substrate roughness presence organic adsorbents. theoretical exploit our order gain insight into heterogeneous nucleation. apolar hydrophilicity unlikely nucleators, too large conspires against Furthermore, statistical-thermodynamic shed light nature intermolecular forces promoting premelting, provide model predict layer substrate's great potential fields ranging from earth sciences aircraft engineering.

Language: Английский

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Role of Intermediate Wetting States in Ice Adhesion and Debonding Mechanisms: An Experimental and Numerical Investigation

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136669 - 136669

Published: March 1, 2025

Language: Английский

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Inadequacy of Peak Detachment Force in Describing Ice Adhesion Strength: the Critical Role of Shear Force–Time Evolution in Icephobicity Assessment

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Icephobicity encompasses a multifaceted definition that necessitates evaluations across various scales, from single droplets to larger ice specimens. The predominant method for evaluating icephobicity performance is adhesion strength (IAS) testing. Multiple geometries and scales testing are proposed. conventional key parameter derived this test analysis the peak detachment force value, which subsequently converted IAS (stress). Recent studies raise questions regarding approach challenge its adequacy comprehensive assessment. To achieve more profound understanding of phenomena involved, study utilizes three distinct benches, all in horizontal shear geometry but under varying conditions. findings indicate values do not necessarily reflect actual behavior. However, versus time evolution (obtained force–time plots) can provide valuable insights into icephobicity, including viscoelastic response coatings underlying failure mechanisms. beneficial aspects additionally validated context investigating coating durability through consecutive (icing/ice detachment) cycles, wherein methodologies, such as wetting morphological parameters, fail capture deterioration.

Language: Английский

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Analysis of critical conditions for air bubble detachment from freezing fronts under different gravitational environments

Fundamental Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Discontinuity-enhanced icephobic surfaces for low ice adhesion

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 679, P. 403 - 410

Published: Sept. 27, 2024

Language: Английский

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