An integrated approach to the creation of scientific physicochemical foundations of the process of synthesis of large polycrystalline samples or products of reinforced ceramic high-temperature materials at low temperatures is implemented, which involves the use of a capillary-porous body with predetermined structural-geometric characteristics of pore channels as a medium for growing fibers reinforcement (the first at the level of separately taken powder particles from which a capillary-porous t is made) ceramic composite.
Loboda Petro I.
The technology of manufacturing of ceramic and metal superstrength composites (40 GPa compressive strength) superhard (30 GPa) reinforced materials based on boron carbide and boride of titanium or aluminum, nanostructured B6O by hot pressing. It is established that changing technological parameters of hot pressing allows controlling chemical, phase composition and structure (grain size, the geometric dimensions of the reinforcing component).
Created physical fundamentals of process control production of wear-resistant high temperature metal and ceramic material reinforced single crystalline fibers of superhard refractory compounds during high-speed sintering directional solidification of melt eutectic alloys quasi binary systems (LaB6-MeB2, B4C-MeB2, WC-W2C, Ti-TiB2) and subsequent heat treatment.
The influence of the kinetic parameters of the process of directional solidification from the melt and directional sintering in the dispersed state, crystal chemistry and diffusion properties of the initial components, energy parameters of elastic waves, the nature of alloying components on the structural and geometric characteristics of the phase components of ceramic composite materials are investigated.
First in the identical loading conditions the mechanical parameters such as Young's modulus Е, microhardness HV and nanohardness Hh, plasticity characteristics dH »dA, yield stress s0,2, temperature range of ductile-brittle transition, fracture toughness K1c, of intermetallics on the basis of aluminium, wich were absent in reference books till now, and the features of their deformation and destructions on nanо- and microlevels are determined.