Богомол Ю.І.

Physics of high-speed electron-beam sintering of homogeneous and heterogeneous high-temperature materials

Physics of high-speed electron-beam sintering of homogeneous and heterogeneous high-temperature materials

The development is devoted to high-speed electron-beam sintering of samples from metal and metal-ceramic materials based on refractory compounds. The basic laws of structure formation in the conditions of electron-beam sintering of metal and metal ceramic materials are established. Computer simulation methods have been used to study the effect of porosity and porous structure of samples sintered under electron-beam sintering conditions on their temperature field and thermal conductivity.

Physics of high-temperature strength of reinforced ceramic materials of special, functional and biomedical purposes

Деталь камери згорання апогейного рідинного двигуна

The basic regularities of the physical nature of strength of directionally solidified eutectic alloys (LaB6-MeB2, B4C-MeB2, Ti-TiB, Mo-Si-B, etc.) have been defined by systematic studies of the influence of the nature of the matrix and reinforcing phases, their structural-geometric characteristics, and stress-strain state on the temperature dependence of mechanical characteristics of composite materials.

Development of manufacturing technique of products from reinforced ceramic composites for tribotechnical and tool purpose

Ріжуча пластина під час роботи

The technology of manufacturing of powder of superhard and high-strength ceramic materials by directional crystallization of eutectic alloys of B4C-TiB2, LaB6-ТіB2, Mo-Si-B systems in conditions of zone melting and centrifugal spraying was developed. It is found that the change of the process parameters allows obtaining the powders with particle size of 40-500 microns, a spherical shape and narrow particle size distribution.