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Melting and superheating of nanowires - A nanotube approach

机译:纳米线的熔化和过热-纳米管方法

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摘要

We have investigated the size-dependent melting of nanotubes based on a thermodynamic approach and shown that the melting temperature of nanotubes depends on the outer radius and on the inner radius through the thickness of the nanotubes. Size-dependent melting of nanowires and thin films has been derived from that of nanotubes. We validate the size-dependent melting of nanotubes, nanowires and thin films by comparing the results with available molecular dynamic simulations and experimental results. It has also been inferred that superheating occurs when the melting starts from the inner surface and proceeds towards the outer surface, while melting point depression occurs when the melting starts from the outer surface and proceeds towards the inner surface.
机译:我们已经基于热力学方法研究了纳米管的尺寸依赖性熔化,并显示了纳米管的熔化温度取决于整个纳米管的厚度的外半径和内半径。纳米线和薄膜的尺寸依赖性熔化已经从纳米管中衍生出来。通过将结果与可用的分子动力学模拟和实验结果进行比较,我们验证了纳米管,纳米线和薄膜的尺寸依赖性熔化。还可以推断,当熔融从内表面开始并朝外表面进行时,就会发生过热,而熔点下降是从熔融表面从内表面开始并向内表面进行的时候发生熔点降低。

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