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

Akbarpour, M. R ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1016/j.mtcomm.2018.11.001
  3. Publisher: Elsevier Ltd , 2019
  4. Abstract:
  5. 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
  6. Keywords:
  7. Copper ; Metal matrix composites (MMCs) ; Nanoparticle ; Tribological behavior ; Copper compounds ; Fabrication ; Friction ; Hardness ; Hot pressing ; Mechanical alloying ; Metal nanoparticles ; Metallic matrix composites ; Milling (machining) ; Nanocomposites ; Nanoparticles ; Powder metallurgy ; Silicon carbide ; Tribology ; Wear of materials ; Wear resistance ; Friction coefficients ; High-energy mechanical milling ; Hot pressing method ; Nanostructured copper ; Nanostructured Cu ; Tribological behaviors ; Tribological properties ; Wear and friction ; Silicon compounds
  8. Source: Materials Today Communications ; Volume 18 , 2019 , Pages 25-31 ; 23524928 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S235249281830237X