STRUCTURE, ELECTRICAL RESISTIVITY AND THERMAL CONDUCTIVITY OF ALUMINUM NITRIDE MATRIX PHASE MATERIAL WITH ADITION OF TANTALUM CARBIDE AND TITANUM ALUMINIDE

  • Vadym Omelianenko Bakul Institute for superhard materials NAS of Ukraine
  • Igor Fesenko Bakul Institute for superhard materials NAS of Ukraine https://orcid.org/0000-0001-6108-4306
  • Lyudmyla Romanko Bakul Institute for superhard materials NAS of Ukraine
  • Serhii Staryk Bakul Institute for superhard materials NAS of Ukraine
  • Halyna Oliynyk Institute for Problems of Materials Science National Academy of Sciences in Ukraine
  • Oksana Kaidash Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine https://orcid.org/0000-0002-8879-3425
  • Anatolii Marchenko Bakul Institute for superhard materials NAS of Ukraine
  • Oleksandr Podoba Bakul Institute for superhard materials NAS of Ukraine
  • Lilia Polikarpova Bakul Institute for superhard materials NAS of Ukraine
Keywords: aluminum nitride, tantalum carbide, titanium aluminide, microstructure, thermal conductivity, electrical resistivity

Abstract

The AlN–Y2O3–2.5%TaC–7.5%TiAl3 ceramic composite was prepared by pressureless sintering and its properties have been examined. Microstructural characteristics, measured values of thermal conductivity at room temperature and electrical resistivity in the 300-700 K temperature range are presented. As-prepared material is proposed for making parts of high-power density electronics operated at elevated temperatures.

Author Biography

Oksana Kaidash, Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine

The main area of ​​research is the creation of advanced (high-tech) ceramics with improved physico-mechanical, physico-chemical and functional characteristics due to the establishment of structural sintering mechanisms of refractory carbides and nitrides with heterodesmic interatomic bonds, patterns of formation of their microstructures. Specialist in powder metallurgy and has experience in working with a number of technologies: sintering, hot pressing, slip casting, hot extrusion of ceramic powders.

Leading researcher of dep. 6  ISM NANU, Dr. Sci. (Material Science), 

https://orcid.org/0000–0002–8879–3425;  SCOPUS ID:  6603071054;  h-index: 4

The degree PhD (1992). PhD thesis : "Development of corrosion-resistant cermets based on titanium nitride with increased stability in biologically active medium"  05.02.01 - Material Science 
Defence of thesis 05 December 1991 at the Special Academic Council of the Bakul Institute of Superhard Materials of the National Academy of Sciences of Ukraine (Kyiv).

Dr. Sci. (2019): “Scientific fundamentals of formation of structure and properties during sintering from submicron refractory carbides and nitrides of advanced ceramics for the mechanical engineering” 05.02.01 - Material Science. Defence of thesis 22 November 2018 at the Special Academic Council of the Bakul Institute of Superhard Materials of the National Academy of Sciences of Ukraine (Kyiv).

Published
2025-11-21
Issue
Vol 1 No 28 (2025): Tooling materials Science
Section
Development and implementation of equipment and tools equipped with hard alloys