Aluminium Carbon Nanotube Composites—A Review on Latest Approaches

Rahiman, Abdul; Smart, D.S. Robinson

doi:10.1007/978-3-319-76276-0_39

Cited by 2 publications

(3 citation statements)

References 28 publications

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“…Carbon nanotubes (CNTs) have emerged as an ideal reinforcement to design novel Al-based CNT nanocomposites [ 3 , 4 , 5 , 6 ] due to their exceptional electrical, mechanical and thermal properties [ 7 , 8 , 9 ]. The preferred methodology for processing such nanocomposites is through powder metallurgy [ 6 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Several investigations have been reported previously to enhance the understanding and comprehension of Al-CNTs consolidation by varying pressure, temperature and holding time during the SPS process [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. Additionally, it has been reported that faster cooling rates and short processing time during sintering avoid the formation of Al 3 C 4 [ 3 , 14 ]. Efforts have been largely focused on investigating strengthening of the mechanical properties, however, there is also a scientific and industrial interest to address the electrical conductivity properties of monolithic Al-based CNT composites to use them, potentially, as replacement of conductive materials while preserving their enhanced mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Spark Plasma Sintering of Aluminum-Based Powders Reinforced with Carbon Nanotubes: Investigation of Electrical Conductivity and Hardness Properties

et al. 2021

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This paper focuses on reporting results obtained by the spark plasma sintering (SPS) consolidation and characterization of aluminum-based nanocomposites reinforced with concentrations of 0.5 wt%, 1 wt% and 2 wt% of single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs). Experimental characterization performed by SEM shows uniform carbon nanotube (CNT) dispersion as well as carbon clusters located in the grain boundary of the Al matrix. The structural analysis and crystallite size calculation were performed by X-ray diffraction tests, detecting the characteristic CNT diffraction peak only for the composites reinforced with MWCNTs. Furthermore, a considerable increment in the crystallite size value for those Al samples reinforced and sintered with 1 wt% of CNTs was observed. Hardness tests show an improvement in the composite surface hardness of about 11% and 18% for those samples reinforced with 2 wt% of SWNCTs and MWCNTs, respectively. Conductivity measurements show that the Al samples reinforced with 2 wt% of MWCNTs and with 0.5 wt% SWCNTs reach the highest IACS values of 50% and 34%, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spark Plasma Sintering of Aluminum-Based Powders Reinforced with Carbon Nanotubes: Investigation of Electrical Conductivity and Hardness Properties

et al. 2021

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“…Multi-walled or single-walled CNTs (MWCNTs and SWCNTs, respectively) are ideal nanostructures to reinforce Al-based materials [ 1 , 8 ] because of their excellent physical properties [ 9 , 10 , 11 ]. It is well-known that the Young modulus value for CNTs is about 1 TPa [ 12 ], while the thermal expansion coefficient can reach values close to

K −1 [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Electrical Conductivity of Aluminum-Based Nanocomposite Produced by Spark Plasma Sintering

Ulloa-Castillo

Hernandez-Maya²,

Islas-Urbano

et al. 2021

Nanomaterials

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This article focuses on exploring how the electrical conductivity and densification properties of metallic samples made from aluminum (Al) powders reinforced with 0.5 wt % concentration of multi-walled carbon nanotubes (MWCNTs) and consolidated through spark plasma sintering (SPS) process are affected by the carbon nanotubes dispersion and the Al particles morphology. Experimental characterization tests performed by scanning electron microscopy (SEM) and by energy dispersive spectroscopy (EDS) show that the MWCNTs were uniformly ball-milled and dispersed in the Al surface particles, and undesirable phases were not observed in X-ray diffraction measurements. Furthermore, high densification parts and an improvement of about 40% in the electrical conductivity values were confirmed via experimental tests performed on the produced sintered samples. These results elucidate that modifying the powder morphology using the ball-milling technique to bond carbon nanotubes into the Al surface particles aids the ability to obtain highly dense parts with increasing electrical conductivity properties.

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Aluminium Carbon Nanotube Composites—A Review on Latest Approaches

Cited by 2 publications

References 28 publications

Spark Plasma Sintering of Aluminum-Based Powders Reinforced with Carbon Nanotubes: Investigation of Electrical Conductivity and Hardness Properties

Spark Plasma Sintering of Aluminum-Based Powders Reinforced with Carbon Nanotubes: Investigation of Electrical Conductivity and Hardness Properties

Enhancement of Electrical Conductivity of Aluminum-Based Nanocomposite Produced by Spark Plasma Sintering

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