Gurin I. Development and investigation of the new materials with the pyrocarbon matrix for the contemporary energetic, machinery and medicine

Object: structure and characteristics of carbon composite materials on pyrocarbon bond. The purpose: working out of physical and technological bases of the newest composite materials on pyrocarbon bond reception technology for modern power, mechanical engineering, medicine, different areas of a science and techniques with the use of thermo-gradient gas-phase densification methods. Methods: methods of thermal gradient gas-phase densification by pyrocarbon, hydrostatic methods of density definition and definition of open porosity of materials, strength limit definition at compression and at a bend, scanning electronic microscopy and optical microscopy. Results: With use of advanced theoretical model the influence of critical temperature, temperature gradient and structure of hydrocarbon gas on the speed of the densification process is in details defined for the first time. It is determined, that the most promising direction for increasing the efficiency of the densification by the method of a radially driven pyrolysis process is the use of the more complicated than methane hydrocarbon precursors. For the first time the technique of definition of the highest possible final density for the carbon composite material depending on the density and specific content of the filling material is offered and checked up. Field of application: physics of solid state, material science