Interaction between the Kirkendall effect and the inverse Kirkendall effect in nanoscale particles

✍ Scribed by A.M. Gusak; K.N. Tu

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 331 KB
• Volume: 57
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/j.actamat.2009.03.043

✦ Synopsis

A simple kinetic model of the interaction between the Kirkendall effect and the inverse Kirkendall effect in hollow nano-shell formation by solid-state reaction is presented. The difference in vacancy concentrations at the inter-phase boundaries (and corresponding vacancy gradients) is taken into account as well as the curvature effect on the driving force of the reaction. A criterion for nano-shell formation is proposed.