The Effect of Aluminum-Oxide Powders on the Structure and Properties of Copper Electrodeposited Composite Coatings

I. R. Volkova; Волкова И. Р.; L. E. Tyryshkina; Тырышкина Л. Е.; M. N. Volochaev; Волочаев М. Н.; A. N. Zaloga; Залога А. Н.; K. A. Shabanova; Шабанова К. А.; A. V. Ovchinnikov; Овчинников А. В.; A. I. Lyamkin; Лямкин А. И.

doi:10.31857/S0044185622700024

The Effect of Aluminum-Oxide Powders on the Structure and Properties of Copper Electrodeposited Composite Coatings

Authors: Volkova I.R.¹, Tyryshkina L.E.¹^,2, Volochaev M.N.¹, Zaloga A.N.², Shabanova K.A.¹^,3, Ovchinnikov A.V.³, Lyamkin A.I.¹^,2
Affiliations:
1. Federal Research Center “Krasnoyarsk Science Center”, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
2. Siberian Federal University, 660041, Krasnoyarsk, Russia
3. Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia
Issue: Vol 59, No 1 (2023)
Pages: 39-44
Section: НОВЫЕ ВЕЩЕСТВА, МАТЕРИАЛЫ И ПОКРЫТИЯ
URL: https://ruspoj.com/0044-1856/article/view/663821
DOI: https://doi.org/10.31857/S0044185622700024
EDN: https://elibrary.ru/PUGQJC
ID: 663821

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Abstract

Copper electrodeposited composite coatings containing two types of aluminum-oxide powders with different dispersities (alumina Al2O3-1 and electroexplosive aluminum-oxide nanopowder Al2O3-2) are obtained during the work. The studies show that introducing the powders leads to a change in the microstructure of the composites and a change in the grain growth principles during the formation of the coatings. Refinement and ordering of the grain structure of the coatings occurs and twinning defects and texture are formed. The change in the formation of the microstructure of the composites leads to a change in some operational characteristics: an increase in the microhardness (by 10% in the composites with the addition of alumina and by more than 30% in the coatings with electroexplosive aluminum oxide) and ultimate tensile strength (by 20% in the composites with Al2O3-1 and almost 1.5-fold in the samples with Al2O3-2).

Keywords

copper electrodeposited composite coatings, aluminum-oxide nanopowder, alumina, microstructure, microhardness, ultimate tensile strength

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