Size effect on the freezing temperature of lead particles

2019-11-10 14:15:41

temperature size freezing 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 Materials Science Letters(J. Mater. Sci. Lett. (USA)),2000/11/01,19(21):1893-5 摘要: A model, free of any adjustable parameters, for the size-dependent solidification of Pb nanoparticles is developed according to the classic nucleation theory and our model for the size-dependent melting. The model, supported by experimental evidence, is utilized to interpret the size-dependent freezing temperature of liquid and size-dependent undercooling. It is found that the freezing temperature and the solid-liquid interfacial energy are dependent on the size of the particles. As the nanoparticle size reaches a critical size, the melting temperature and freezing temperature are the same 关键词: freezing;lead;melting;nanostructured materials;nucleation;particle size;size effect;undercooling;lead particles;freezing temperature;size effect;solidification;nanoparticles;nucleation theory;melting;undercooling;solid-liquid interfacial energy;particle size;melting temperature;Pb