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This study investigates how nanoscale capillaries fill with liquid across a wide temperature range, from room temperature up to conditions found during serpentinization (a geological process occurring at approximately 200-400°C). The researchers demonstrate that interfacial properties and evaporation dynamics at the liquid-solid boundary can control and even halt (pin) the filling process in these extremely narrow channels. The findings reveal temperature-dependent mechanisms that govern fluid transport at the nanoscale in extreme thermal environments.
Why it matters
Understanding nanoscale fluid behavior at elevated temperatures has implications for geological processes like serpentinization in Earth's crust, enhanced geothermal energy extraction, and the design of thermal management systems in advanced electronics. This knowledge could also inform the development of nanoporous materials for high-temperature catalysis and filtration applications.
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