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Theoretical phase diagrams of nanowires

机译：纳米线的理论相图

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摘要

Systems with typical dimensions in the range of 1-100 nm are in an intermediate state between solid and molecular. Such systems are characterized by the fact that the ratio of the number of surface to volume atoms is not small. This is known to lead to size and shape effects on their cohesive properties. In this work, the phase diagram of nanowires was studied in the framework of classical thermodynamics. The roles of the size, shape, and surface tensions were emphasized. The melting temperatures of nanowires of 21 elements were evaluated theoretically. In the case of binary systems, it was shown that the experimental or theoretical knowledge of the size-dependent phase diagrams of a given binary system allows the evaluation of the one of nanowires. The procedure is described in this paper.
机译：典型尺寸在1-100 nm范围内的系统处于固体和分子之间的中间状态。这样的系统的特征在于，表面原子数与体积原子数之比不小。众所周知，这会导致尺寸和形状对其内聚性产生影响。在这项工作中，在经典热力学的框架内研究了纳米线的相图。强调了尺寸，形状和表面张力的作用。从理论上评估了21种元素的纳米线的熔化温度。在二元系统的情况下，已表明，给定二元系统的尺寸相关相图的实验或理论知识可以评估纳米线之一。该过程在本文中进行了描述。

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