The paper presents the results of experimental studies of the structural state of composites obtained at high temperatures and pressures from cBN powders with coatings deposited by CVD from Ti compounds using a gas transport reaction. The features and quantitative parameters of the structure of the composites depending on the presence of Ti in the coating were determined. It has been experimentally established that the matrices of the obtained composites are formed by submicron grains of TiN and TiB2, the quantitative differences of which correspond to the concentration of Ti in the coating - from 3 to 8 %. The structure of the obtained composites is characterized by a uniform distribution of the ceramic matrix between the cBN grains, which is achieved due to the high-quality encapsulation of individual grains of the superhard phase in the coating. The ceramic layers have the largest dimensions (up to 10-12 μm) in the area of triple joints, the width of the zone between two adjacent cBN particles is < 1 μm. When moving from a coated powder to a composite, the shape of the diffraction peaks changes, which is associated with the stresses of the first and/or second kind inherent in the studied samples. Sintering of the powder leads to a decrease in the size of the blocks from 56 nm to 27 nm, an increase in the lattice strain from 0.11 to 0.24 %, in TiN - to an increase in the lattice parameter in the composite by 10% (from 0.4244 nm to 0.4253 nm), a decrease in the size of crystallites within individual grains from 100 nm to 20 nm, and an increase in the lattice strain by 0.47 %. At the same time, TiN nitride is supersaturated with nitrogen, which is a significant increase in its lattice parameter, and the coating formed in this case is exclusively oriented in the (022) direction.