Registration Number
0220U100518,
0117U004301
, R & D reports
Title
Physics of high-temperature strength of reinforced ceramic materials for special, functional and biomedical applications
popup.stage_title
Head
Лобода Петро Іванович,
Registration Date
21-01-2020
Organization
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
popup.description2
Report: 248 pages, 127 figures, 26 tables, 165 sources
CERAMICS, TEMPERATURE GRADIENT, BORON CARBIDE, METALLOCERAMICS, ZONE FOAM
The object of study is the processes of formation of microstructure, phase composition and properties of reinforced ceramic and metal-ceramic composite materials on the basis of the most refractory non-metallic and metal-like refractory compounds and metal-ceramic pseudo-alloys.
The purpose of the work is to develop the physicochemical bases of obtaining high-temperature ceramic and metal-ceramic reinforced composite materials on the basis of refractory compounds under conditions of reduced temperatures up to 1500 ° C, by studying the kinetics of the sintering process and forming the structure of a capillary-porous body in the temperature gradient field
An integrated approach to the creation of scientific physicochemical foundations of the process of synthesis of large polycrystalline billets 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 Lo) ceramic composite. The kinetic parameters of the growth process of refractory grains B4C, SiC, SiB6 in the silicon melt in the presence of a temperature gradient have been established. It is shown that, depending on the velocity of the field of the temperature gradient, the microstructure of the obtained ceramics changes. The influence of crystallization rate on the process of microstructure formation of reinforced metal-ceramic Ti-TiB composite was investigated. It was found that increasing the crystallization rate leads to a change in the microstructure, namely, the higher the crystallization rate, the smaller the fiber size and the larger the number.
Product Description
popup.authors
Kysla Galyna P.
Loboda Petro I.
Mazur Vladyslav I.
Soloviova Tetiana O.
Solodkii Yevgen V.
Stepanchuk Anatolii M.
popup.nrat_date
2020-04-02
