ABSTRACT
This chapter presents the physicochemical and technological principles of obtaining refractory materials based on self-propagating high-temperature synthesis (SHS). It considers the macrokinetic regularities of aluminothermal combustion in SHS mode of chromium oxides, silicon, and iron, constituting the active components of SHS refractories. The chapter examines the associative role of silica sols and the impact of nanosized silicon on the SHS process in oxide systems. It then considers the features of SHS in oxides in the presence of carbon and the field of application of carbonaceous SHS refractories. The chapter also presents the results concerning successful implementations of SHS refractories during repair of shaft furnaces for limestone calcining and induction furnaces for melting of nonferrous metals in recent years. Heterocoagulation of silica sol in the presence of fine powder materials leads to the formation of nanodispersed silicon oxide at the surface of particles of a heterogeneous environment.
