Maximum temperature of combustion products as obtained by thermodynamic calculation

Exothermic chemical reactions with increasingly growing self-acceleration at the initial stages

The front edge of the combustion wave-an imaginary surface between the heat-affected and reaction zone

A maximum temperature attained in the combustion wave

Propagating area of localized combustion (transient zone) comprising the heat-affected zone, reaction zone, zone of afterburning, and zone of secondary (or post-) processes that is formed between a starting reactive mixture and combustion products

Formation of combustion products through a sequence of thermodynamically equilibrium phases

The initial stage of combustion during which the energy supplied from an external source gives rise to self-acceleration of chemical reaction owing to increasingly growing accumulation of heat (thermal self-inflammation) or transient reactive species (chain inflammation)

Combustion of solids that proceeds without formation of liquid and gaseous products

Local initiation of an autowave (self-propagating) process

Incomplete reaction during combustion that either yields stable intermediate products or leaves residual starting reagents in an end product

Combustion front propagation in a porous medium under the conditions of infiltration of gaseous reagent

Combustion of solids accompanied by melting and followed by chemical reaction in the melt

A branch of chemical kinetics that describes the behavior of a reactive medium with the highest consideration for the rates of chemical reaction and accompanying processes of mass, heat, charge, and momentum transfer (with account of positive and negative feedback)

Unsteady combustion mode during which the instantaneous rate of front propagation undergoes oscillation around some mean value

Formation of combustion products that contain nonequilibrium (metastable) phases

Abrupt cooling of a burning substance in order to arrest phase transformations and chemical reactions in a sample

Propagation of the second combustion wave over a partially burned (during the first wave) substance

A mode of thermal inflammation in which externally supplied heat has time to uniformly spread over the reactive mixture

Earlier definition: Synthesis of refractory compounds form the elements in the autowave (self-propagating) mode

Extended definition: A physicochemical process for synthesizing practically applicable materials (powders, items, coatings) based on exothermic reaction between two or several reagents that is carried out in the mode of combustion

Modern definition: A self-sustained combustion-like process yielding useful products (materials)

An unsteady combustion mode during which chemical reaction is localized in combustion spots that move alongside a screw (cylindrical surface) or spiral-like (planar surface) trajectory

A combustion mode during which all points of the combustion front move at an identical velocity

A branch of macrokinetics that investigates processes with structural and phase transformations

Nonfrontal combustion that proceeds over the entire volume of a system

A zone within which starting mixture becomes heated owing to heat transfer from the reaction zone of oncoming combustion wave

A narrow zone in the combustion wave of exothermic reaction that defines the velocity of front propagation

A zone of slow afterburning that defines the extent of conversion and has no influence on the burning velocity

A zone (far behind the combustion front) of structure and phase transformations that define the composition, structure, and properties of end products