Size and shape dependent melting-thermodynamic properties of metallic nanoparticles

作者：Xie D; Qi WH; Wang MP^*

来源：Acta Metallurgica Sinica, 2004, 40(10): 1041-1044.

• metallic nanoparticle
• size effect
• shape effect
• melting-thermodynamic model

A melting-thermodynamic model is developed, which can describe the effect of size and shape of metallic nanoparticle on its melting-thermodynamic properties. It is predicted that there exist a minimum critical size r(c) = 5r(0)/mu(1/2){1 - exp[-2S(m)(infinity)/3k]} and a lowest melting temperature T-c(r) = T-m(infinity)exp[-2S(m)(infinity)/3k] for metallic nanoparticle. The present theoretical results on the melting point, the melting, entrapy and the melting enthalpy of nanoparticles Au, In, Al and Sn are consistent with the corresponding experimental values.

• 出版日期2004-10-11
• 单位中南大学