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Hardness, wear and friction characteristics of nanostructured Cu-SiC nanocomposites fabricated by powder metallurgy route

Title
Hardness, wear and friction characteristics of nanostructured Cu-SiC nanocomposites fabricated by powder metallurgy route
Authors
Akbarpour, M. R.Najafi, M.Alipour, S.Kim, H. S.
Date Issued
Mar-2019
Publisher
ELSEVIER SCIENCE BV
Abstract
In the present study, hardness and tribological properties of nanostructured copper reinforced with SiC nanoparticles of various volume fractions (0, 2, 4, and 6 vol%) were investigated. The nanocomposites were fabricated by high-energy mechanical milling and hot pressing method. The Cu-SiC nanocomposites showed enhanced hardness and wear resistance against WC counterface. The hardness and wear resistance of the nanocomposite increased with increasing the amount of SiC nanoparticles up to 2 vol% in the matrix, but they decreased at higher percentages of SiC (4 and 6 vol%). Flake formation-spalling and abrasion were identified as the predominant wear mechanisms. It was found that reducing the normal load and increasing the amount of SiC resulted in an increase in the friction coefficient of the nanocomposite.
URI
http://oasis.postech.ac.kr/handle/2014.oak/95275
ISSN
2352-4928
Article Type
Article
Citation
MATERIALS TODAY COMMUNICATIONS, vol. 18, page. 25 - 31, 2019-03
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 KIM, HYOUNG SEOP
Dept of Materials Science & Enginrg
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