Оксиды Ca3Co4O9 синтезированы методом Печини и твердотельным методом. Для компактирования использовались метод искрового плазменного спекания (SPS), холодное прессование с последующим взрывным сжатием (метод взрыва) и метод быстрого горячего прессования (RHP). Компактирование методом взрыва с добавлением связующего AlN привело к максимальной добротности при комнатной температуре ZT300K = 0.161. Добавление многослойных углеродных нанотрубок (CNTs) в оксиды, синтезированные методом Печини, ведет к ухудшению характеристик. Увеличение концентрации CNTs в Ca3Co4O9, синтезированных твердотельным методом и компактированных RHP методом, ведет к увеличению добротности ZT300K до 0.048 в Ca3Co4O9+3 wt%CNTs.

It is established, that a mesocomposit material (MC), consistingof a coppermatrix with submicrocrystalline structure (d=3…5μm)andinclusions‐ agglomerates inthesize 1…5 μm containing 28 vol. % Cuand 72vol. % TiB2, under dynamic loading conditions (eሶin the range of 103…107 c‐1) deformed as a nanocrystallinematerials. The collision parametersof explosive welding, providing the formation ofstrong bondingof MC with copper are defined.

Explosive compacts from copper powders essentially different in the form of particles were investigated. It is shown that relative change of a specific surface under identical conditions of compaction is practically identical to all powders. This testifies local similarity of deformation process of surfaces of particles with different form. With increase in relative change of a specific surface electric conductivity of powders grows, that well correlates with results of research of destruction surfaces. Compacts from a powder with dendritical form of particles have higher conductivity in comparison with compacts of spherical particles. It is accounted by greater amount of juvenile surfaces arising in powders with irregular-shaped particles at plastic slide of macroscopical volumes of particles on strain-induced high-angle boundaries.

To solve successfully the problems of explosion compaction of porous media with the goal of obtaining high-density compacts, information is required on the shock-wave characteristics of loaded materials, on the parameters of explosion compaction, and on their effects upon the structure and properties of compacts. This paper reports on several methods which have been applied to investigate the processes of dynamic compaction of porous materials. An approximate calculation method of estimating the parameters of shock-wave loading of porous materials has been developed for the case of compaction of materials to the monolith density. A remote electromagnetic method of determination of the mass velocity beyond the shock wave propagating in powders, fibrous materials, and other heterogeneous media is described. A procedure of elucidation of the structure of powder compacts which is based on the combined use of the results of measurements of the stereologic parameters and conduction of compacts is considered. As an example of the use of the above methods, the results of experiments on explosion compaction of a composite based on the Cu matrix discretely reinforced by ultrafine diamonds are reported.