Modelling for size-dependent and dimension-dependent melting of nanocrystals
Modelling for size-dependent and dimension-dependent melting of nanocrystals
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DOI：
10.1088/0022-3727/33/20/318
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发表时间：
2000-10
期刊：
影响因子：
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通讯作者：
Zhensong Zhang;Junfeng Li;Q. Jiang
中科院分区：
文献类型：
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作者：
Zhensong Zhang;Junfeng Li;Q. Jiang
建立了纳米晶体熔点下降和过热的尺寸依赖性和尺寸依赖性的统一模型，不需要任何可调参数。考虑到纳米晶体的表面体积比，预测了纳米晶体熔点的抑制和嵌套纳米晶体的过热。模型对纳米晶体熔化温度的预测与实验结果和分子动力学模拟结果一致。
A unified model, free of any adjustable parameters, for the size-dependence and dimension-dependence of melting point depression and superheating of nanocrystals is developed. In terms of the consideration of the surface/volume ratio of nanocrystals, the suppression of melting point of nanocrystals and superheating of embedded nanocrystals are predicted. The model predictions for the melting temperatures of nanocrystals are consistent with the experimental results and molecular dynamics simulations.