INFLUENCE OF THE OXIDE ADDITION TO A HOT PRESSING PROCESS AND PERFORMANCES CHARACTERISTICS OF THE EVAPORATORS

Keywords: composite material, hot pressing, titanium diboride, evaporator, vacuum metallization unit

Abstract

The effect of activating additives of alumina and magnesium oxides on the shrinkage of hot-pressed material TiB2–BN–AlN was studied. Produced dense composites were tested in a vacuum metallization unit. It is shown that the presence of oxygen in the hot-pressed material reduces the coatings quality of the obtained by evaporation of aluminum from its surface, due to the transition of oxygen presenting in the composite into the coating material

Author Biography

O. M. 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
2022-02-11
Issue
Vol 24 No 1 (2021): Instrumental Materials Science
Section
Development and implementation of equipment and tools equipped with hard alloys