Phase transformations in icosahedral small copper particles during their annealing in different gas media

Abstract

Results from experiments on the annealing of icosahedral small particles (ISPs) of copper in dif ferent gas media are presented. The growth of nanowhisker structures and nanopores on the surfaces of ISPs is observed. The multilayer internal structure of annealed ISPs that incorporate a metallic core, cavities, and copper oxide layers is revealed.