Nanoscale insights into vibration-induced heterogeneous ice nucleation.

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Tác giả: Pengxu Chen, Saikat Datta, Rohit Pillai

Ngôn ngữ: eng

Ký hiệu phân loại: 553.453 Tin

Thông tin xuất bản: England : Nanoscale , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 749859

Accelerating ice nucleation in confined liquids is desirable in applications like food freezing, cryopreservation, and ice casting, but current techniques have their limitations. The use of high-frequency acoustic waves (AW) is a promising alternative but remains poorly-understood. We employ molecular dynamics simulations to investigate AW-induced ice nucleation within confined nanopores. By systematically varying vibrational amplitude and frequency, we identify five distinct nucleation regimes, forming a comprehensive regime map that links these parameters to nucleation outcomes. Our simulations reveal that ice nucleation is preceded by formation of ice-like clusters, and is strongly influenced by negative pressure induced by surface vibrations. A strain-based criterion is introduced to generalize the findings to larger lengthscales. This enables us to propose a universal framework for controlling ice formation
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