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The Effect of Sintering on the Microstructure, Hardness, and Tribological Behavior of Aluminum–Graphene Nanoplatelet Powder Composites

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Powder Metallurgy and Metal Ceramics Aims and scope

In this study, aluminum and graphene nanoplatelet (GNP) powders were mixed in different ratios and sintered by the conventional method. The powder mixtures were stirred for 2 h at a speed of 35 rpm in a V-type mixer to obtain a homogeneous dispersion. The nanocomposite powder mixtures were pressed by the CIP (Cold Isostatic Pressing) method at a pressure of 400 MPa. Sintering was carried out at 620°C for 1 h under argon gas. The density, surface roughness, weight loss, and Vickers hardness of the nanocomposites were evaluated. SEM, EDX, and XRD analyses were performed and the obtained results were examined. The effect of the graphene addition to aluminum was evaluated, and the optimum contribution of 0.8 wt.% GNP has been determined.

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Acknowledgments

The research in this paper was supported by the Scientific and Technological Research Council of Turkey (Project Number: 214M414), 2015-010 and FBE 2012-022 Celal Bayar University BAP projects.

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Authors and Affiliations

  1. Engineering Faculty, Mechanical Engineering DepartmentI, Izmir Demokrasi University, IDU Campus, 35140, Izmir, Turkey

    U. Çavdar

  2. Mechanical Engineering Department, Manisa Celal Bayar University, Muradiye Campus, Manisa, Turkey

    O. Akkurt

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  1. U. Çavdar
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Correspondence to U. Çavdar.

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Published in Poroshkova Metallurgiya, Vol. 57, Nos. 5–6 (521), pp. 21–29, 2018.

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Çavdar, U., Akkurt, O. The Effect of Sintering on the Microstructure, Hardness, and Tribological Behavior of Aluminum–Graphene Nanoplatelet Powder Composites. Powder Metall Met Ceram 57, 265–271 (2018). https://doi.org/10.1007/s11106-018-9978-9

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  • DOI: https://doi.org/10.1007/s11106-018-9978-9

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