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Title: | Fabrication and tribo-mechanical performance of Cu@Al2O3 composite |
Authors: | Belgamwar, Sachin U. |
Keywords: | Mechanical Engineering Composite Electro-co-deposition technique Al2O3 nanoparticles Microhardness Coefficient of friction |
Issue Date: | 2022 |
Publisher: | Elsevier |
Abstract: | In this work, Al2O3 reinforced Cu matrix (Cu@Al2O3) composite has been prepared by electro-co-deposition (ECD) technique followed by powder metallurgy (PM). The microstructure, micro-surface morphology and composition of prepared Cu@Al2O3 composite powder were examined by XRD, SEM and EDS, respectively. According to the XRD, SEM and EDS analyses, the Cu@Al2O3 composite powder comprised Cu, Al and O elements and had a crystallite size of ∼ 24 nm. The microhardness and coefficient of friction (COF) of Cu@Al2O3 composite were measured by a digital hardness tester and pin-on-disk tribometer, respectively. It was observed that reinforcement of Al2O3 into the Cu matrix increased the microhardness by ∼ 35% and decreased the COF by ∼ 28% compared to the pure copper sample. The co-deposition of Al2O3 with Cu significantly reduced the crystallite size of the composite, resulting in improved microhardness and COF. The experimental results indicate that a modified ECD technique is a facile and scalable technique to prepare Cu@Al2O3 composite. |
URI: | https://www.sciencedirect.com/science/article/pii/S2214785322017631 http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/12326 |
Appears in Collections: | Department of Mechanical engineering |
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