DEVELOPMENT OF POLYMER COATINGS WITH THE EFFECT OF SELF-LUBRICATION BASED ON POLYIMIDS WITH NANOPARTICLES OF SILICON OXIDE

Keywords: composites with nano-SiO2 filler, Shore hardness, compressive strength, adhesion wear, coefficient of friction

Abstract

The influence of SiO2 nanoparticles on the improvement of thermal stability and increase of mechanical properties of composites has been studied. It has been shown that the addition of nano-SiO2 in composites is effective in limiting adhesion wear and helping to reduce the coefficient of friction. High thermal stability and high mechanical properties make the manufactured composites a potential material for use in self-lubricating bearings, which are subject to the requirements of low coefficient of friction in discrete mode.

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
2023-08-24
Issue
Vol 25 No 1 (2022): Tooling marerials science
Section
Development and implementation of equipment and tools equipped with hard alloys