TO THE QUESTION OF THE ELASTIC PROPERTIES OF ALUMINIUM NITRIDE

  • Oksana Kaidash Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine https://orcid.org/0000-0002-8879-3425
  • Igor Fesenko Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine
Keywords: aluminum nitride, hot pressing, dynamic elastic modulus E, density

Abstract

On two types of polycrystalline materials made by hot pressing from micron and nanodispersed AlN powders, the dynamic elastic modulus E was experimentally determined and the effect on it of material porosity was revealed. Upon manufacturing of dense materials, Young's modulus increases by 30–50% up to 325–350 GPa.

Author Biographies

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).

Igor Fesenko, Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine

Leading researcher of the Department № 7«High Pressure Technologies, functional ceramic composites and dispersed superhard materials», D.Sc. of Engineering (Materials Science), Senior Researcher Offiser

Published
2020-09-25
Issue
Vol 23 No 1 (2020): Tooling materials science
Section
Instrumental, structural and functional materials based on diamond and cubic bor