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Information × Registration Number 0223U003600, 0122U200662 , R & D reports Title Development of scientific and technological principles for the creation of multifunctional powder composites based on copper and aluminum alloys with high-modulus TiC-Ti fillers obtained by directed high-energy synthesis popup.stage_title Head Syzonenko Olga M., Registration Date 30-05-2023 Organization Institute of Impulse Processes and Technologies National Academy of Sciences of Ukraine popup.description2  The object of research is mixtures of Al–Ti, Сu–Ti and Ti powders and composites of the Al–Ti–C and Сu–Ti–С systems. The purpose of the work is to develop the scientific and technological principles of creating multifunctional powder materials with high electrical conductivity and wear resistance based on copper and aluminum powders with high-modulus fillers of the TiC–Ti system, obtained by directed high-energy synthesis using high-voltage electric discharge and spark plasma sintering. Research methods – analytical and mathematical modeling. The conditions for the synthesis of high-modulus fillers of the TiC–Ti system during high-voltage electric discharge (HVED) treatment of the Al–Ti and Cu–Ti and Ti systems in a hydrocarbon liquid were studied. It was shown that during the HVED treatment of powders of the Al – Ti – C system, conditions arise not only for the formation of compounds such as TiC, Al3Ti, AlTi and 4Al + 3C = Al4C3, but also for the synthesis of MAX phases such as Ti2AlC and Ti3AlC2. The conditions for the synthesis of MAX phases are a temperature from 2·104 to 5·104 K and a pressure from 0.5·109 to 1.5·109 Pa, which corresponds to the values typical for the HVED. The phase transformations in the Ti–C system under the conditions of the HVED in a hydrocarbon liquid were theoretically analyzed. It was shown that the synthesis of titanium carbide TiC during HVED processing is possible in the entire range of temperatures typical for such a process. The scientific significance of the research results lies in the development of scientific and technological bases for the creation of multifunctional powder composites based on copper and aluminum powders with high-modulus fillers of the TiC-Ti system, obtained by directed high-energy synthesis using high-voltage electric discharge and spark plasma sintering. The practical significance of the results lies in obtaining multifunctional powder materials with high electrical conductivity and wear resistance, which Product Description popup.authors Kuskova Natalia I. Prystash Mykola S. Sizonenko Olha Mikolayvna Taftai Eduard I. Torpakov Andrii S. Trehub Volodimir O. Khrysto Oleksandr I. Yushchishina Ganna M popup.nrat_date 2023-05-30 Close