Abstract
Experimental and theoretical studies on heterogeneous exothermic reaction waves in multilayer nanofilms are analysed. Mathematical models for the reaction wave propagation are described. The dynamics of phase and structural transformations during heterogeneous reactions in nanoscale systems is considered. Prospects of the studies of reaction waves for the elucidation of the mechanisms of processes in nanoscale systems and for diverse practical applications (in particular, for the development of new welding and soldering techniques) are demonstrated.