Structural transformations in multilayer Ti-Al films (layer thickness from 4 to 500 nm, number of layers up to 4440, total foil thickness ∼18 µm) upon slow heating have been studied by time-resolved synchrotron radiation diffraction. Some specific features of heterogeneous reactions and the sequence of phase formation in multilayer samples during the interaction of interaction between layer components have been determined as functions of the single layer thickness.

The dynamics of structural and phase transitions during heterogeneous reaction in mechanically activated mixtures has been investigated by X-ray diffraction, scanning electron microscopy, and dynamic synchrotron radiation diffraction. It is shown that the mechanisms of formation of the structure of reaction products are significantly different, depending on the temperature mode of the synthesis. Upon slow heating, the process is multistage and includes several intermediate crystalline phases. Upon fast heating, the transformation in the combustion wave occurs much faster, with only one intermediate phase observed.

Ti–Al multilayer foils were produced magnetron vacuum deposition. The microstructure period varied in the range of 5–110 nm, the number of layers was 150–4700, and the total thickness of a multilayer foil reached 15–20 μm. The gasless combustion of the foils was studied. Steady‐state and pulsating combustion regimes were revealed; combustion temperatures were determined for both regimes. It was shown that the most probable mechanism of the self‐propagating reaction is the diffusion of Al in β‐Ti at a temperature close to the temperature of the α → β transition.

Technology of force SHS consolidation was for the first time used to prepare two-layer and three-layer functionally graded targets with a working layer based on TiN-TiB2 and TiN-Ti5Si3 intended for ion-plasma sputtering of nanocrystalline functional film materials. Wide transition diffusion zones were shown to be formed between the layers, thus ensuring their strong adhesion. Optimum compositions of the transition layers have been selected. The microstructure, composition, and hardness of the products of synthesis have been studied depending on the mass of the "chemical furnace" used for additional heating of the reaction products of the low-exothermic mixture. The main laws of structure formation of the synthesis products have been established. The variation of the mass of the layer of the "chemical fumace" yields a marked effect of decreasing residual porosity and coarsening grains of the phases present.

The specific features of the combustion of mixtures of titanium with powders of nonmetal nitrides BN and Si 3 N 4 are investigated for the first time. Upon combustion, these nitrides serve as a solid source of reactive nitrogen. It is shown that the mechanism of combustion includes both gasless stages and a reaction of gaseous nitrogen with solid or liquid titanium. Here the gasless interaction prevails in the Ti—BN system, and the combustion of the Ti—Si 3 N 4 system occurs according to a complex mechanism including gasless and gas–phase processes.

Results of a study of some special features of gasless burning in ternary Ti — Si — C, Ti — Si — N, and Ti — B — N systems are presented. The optimum concentration regions for fabricating ceramics based on the Ti3SiC2 phase in combustion are determined. It is recommended to use nontraditional components for fabricating nitrides, borides, and silicides. A study of the dependence of the rate and regime of combustion of Ti — SiC mixtures on the density has shown new kinds of unsteadiness of the combustion front that appear due to the increase in the porosity of the reaction mixtures. In order to obtain a high porosity in the reaction mixtures and the products, an experiment has been performed under the conditions of microgravitation of the Mir orbital probe.