Mechanical properties and friction behaviors of CNT/AlSi<sub>10</sub>Mg composites produced by spark plasma sintering

Lin-zhi Wang; Ying Liu; Jiao-jiao Wu; Xi Zhang

doi:10.1007/s12613-017-1440-3

Volume 24 Issue 5

May 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(5): 584-593

Lin-zhi Wang, Ying Liu, Jiao-jiao Wu, and Xi Zhang, Mechanical properties and friction behaviors of CNT/AlSi₁₀Mg composites produced by spark plasma sintering, Int. J. Miner. Metall. Mater., 24(2017), No. 5, pp. 584-593. https://doi.org/10.1007/s12613-017-1440-3

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Lin-zhi Wang, Ying Liu, Jiao-jiao Wu, and Xi Zhang, Mechanical properties and friction behaviors of CNT/AlSi10Mg composites produced by spark plasma sintering, Int. J. Miner. Metall. Mater., 24(2017), No. 5, pp. 584-593. https://doi.org/10.1007/s12613-017-1440-3

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Research Article

Mechanical properties and friction behaviors of CNT/AlSi₁₀Mg composites produced by spark plasma sintering

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Corresponding author:
Ying Liu E-mail: liuying5536@163.com
Received: 9 November 2016; Revised: 22 December 2016; Accepted: 26 December 2016

Abstract

Abstract

The mechanical properties and friction behaviors of CNT/AlSi₁₀Mg composites produced by spark plasma sintering (SPS) were investigated. The results showed that the densities of the sintered composites gradually increased with increasing sintering temperature and that the highest microhardness and compressive strength were achieved in the specimen sintered at 450℃. CNTs dispersed uniformly in the AlSi₁₀Mg matrix when the addition of CNTs was less than 1.5wt%. However, when the addition of CNTs exceeded 1.5wt%, the aggregation of CNTs was clearly observed. Moreover, the mechanical properties (including the densities, compressive strength, and microhardness) of the composites changed with CNT content and reached a maximum value when the CNT content was 1.5wt%. Meanwhile, the minimum average friction coefficient and wear rate of the CNT/AlSi₁₀Mg composites were obtained with 1.0wt% CNTs.
- metal matrix composites;
- carbon nanotubes (CNTs);
- aluminum silicon magnesium alloys;
- spark plasma sintering;
- mechanical properties;
- friction

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