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Microhardness and friction coefficient of multi-walled carbon nanotube-yttria-stabilized ZrO2 composites prepared by spark plasma sintering

Abstract : Multi-walled carbon nanotubes (eight walls) are mixed with an yttria-stabilized ZrO2 powder. The specimens are densified by spark plasma sintering. Compared to ZrO2, there is a 3.8-fold decrease of the friction coefficient against alumina upon the increase in carbon content. Examinations of the friction tracks show that wear is very low when the carbon content is sufficient. Exfoliation of the nanotubes due to shearing stresses and incorporation of the debris into a lubricating film over the contact area is probable.
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https://hal.archives-ouvertes.fr/hal-00906255
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Submitted on : Tuesday, November 19, 2013 - 2:50:50 PM
Last modification on : Friday, January 10, 2020 - 9:08:20 PM
Long-term archiving on: : Thursday, February 20, 2014 - 9:25:46 AM

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Anne Kasperski, Alicia Weibel, Dalya Alkattan, Claude Estournès, Viviane Turq, et al.. Microhardness and friction coefficient of multi-walled carbon nanotube-yttria-stabilized ZrO2 composites prepared by spark plasma sintering. Scripta Materialia, Elsevier, 2013, vol. 69, pp. 338-341. ⟨10.1016/j.scriptamat.2013.05.015⟩. ⟨hal-00906255⟩

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