Modelling for size-dependent and dimension-dependent melting of nanocrystals

2019-11-06 14:30:30

model point nanocrystals melting dependent

责任者: Zhang, Z.;Li, J.C.;Jiang, Q. 单位: Dept. of Mater. Sci. & Eng., Jilin Univ. of Technol., Changchun, China 来源出处: Journal of Physics D (Applied Physics)(J. Phys. D, Appl. Phys. (UK)),2000/10/21,33(20):2653-6 摘要: 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 关键词: melting;melting point;nanostructured materials;nanocrystals;dimension-dependent melting;size-dependent melting;unified model;superheating;surface/volume ratio;melting point