Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

Singhal, Sunil; Pasricha, Renu; Teotia, Satish; Kumar, G. Sunil; Mathur, R.B.

doi:10.1016/j.compscitech.2011.10.007

Cited by 31 publications

(8 citation statements)

References 37 publications

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“…With such increased strength and conductivity, power transmission lines would therefore be a good end application for AMCs developed based on these reinforcements. Several papers have recently been published on carbonaceous-reinforced aluminium composites e.g., single or multi-walled carbon nanotubes SWNTs/MWCNTs [2][3][4][5][6][7][8][9][10][11]. To achieve the integration of CNTs into AMCs, the following methods have been used: mechanical dispersing, e.g., ball milling process [3], friction stir process [8][9][10], solvent dispersion e.g., ethanol with surfactant/ultrasonic support [12], or hybrid methods of the above [13].…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide and graphene nanosheet reinforced aluminium matrix composites: Powder synthesis and prepared composite characteristics

et al. 2016

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The preparation and properties of reduced graphene oxide (rGO) and graphene nanosheets (GNSs) reinforcement of aluminium matrix nanocomposites (AMCs) are reported. For the rGO-AMCs, commercial colloidal GO was coated onto aluminium powder particles and then reduced via thermal annealing. For the GNS-AMCs, graphene exfoliated from graphite through ultrasonication and centrifugation was coated onto aluminium particle surfaces via dispersion mixing, filtering and drying. Pure aluminium and aluminium composites with various reinforcement concentrations of rGO and GNS were cold compacted into disc-shaped specimens and sintered in inert atmosphere. The mechanical properties and microstructure were studied and characterised via Vickers hardness, X-ray diffraction, density measurement, and scanning electron microscopy. The reinforcements were uniformly distributed onto the aluminium particle surfaces before and after consolidation within the composites. The relevant factors for the powder metallurgy process (compaction pressure, density, and sintering conditions) were optimised. Increased levels of increased hardness were recorded, over baseline compacted and sintered pure aluminium samples, prepared under identical experimental conditions, of 32% and 43% respectively for the 0.3wt.% rGO-Al and 0.15wt.% GNSs-Al composites. The process developed and presented herein provides encouraging results for realising rGO-AMC and GNS-AMC nanocomposites via low cost cold powder compaction and sintering metallurgy techniques.

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Section: Introductionmentioning

confidence: 99%

Graphene oxide and graphene nanosheet reinforced aluminium matrix composites: Powder synthesis and prepared composite characteristics

et al. 2016

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“…One can see that the length of protruded CNT is not more than 1/10 of the initial CNT length. This indicates good adhesion between the CNT and the metal [13][14][15][16]. Table 1 contains the results of the tensile strength test for cold rolled aluminum foils.…”

Section: Methodsmentioning

confidence: 99%

Aluminum foil reinforced by carbon nanotubes

Alekseev¹,

Predtechenskiy²

2016

Nanosystems: Phys. Chem. Math.

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In our research, the method of manufacturing an Al-carbon nanotube (CNT) composite by hot pressing and cold rolling was attempted. The addition of one percent of multi-walled carbon nanotubes synthesized by OCSiAl provides a significant increase in the ultimate tensile strength of aluminum. The tensile strength of the obtained composite material is at the tensile strength level of medium-strength aluminum alloys.

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“…Raj et al [19] have investigated into the effect of sintering temperature and time-intervals on the workability behavior of Al-SiC PM composites. Singhal et al [20] fabricated Al-matrix composites reinforced with amino-functionalized carbon nanotubes using PM process. The tensile strength of aluminium matrix composites reinforced by carbon nanotube particles was increased by a combination of spark plasma sintering followed by hotextrusion processes [21].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Multi Wall Carbon Nanotubes (MWCNT) Reinforced Sintered Magnesium Matrix Composites

Bhaskar

Rajmohan

Palanikumar

et al. 2015

J. Inst. Eng. India Ser. D

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Metal matrix composites (MMCs) reinforced with ceramic nano particles (less than 100 nm), termed as metal matrix nano composites (MMNCs), can overcome those disadvantages associated with the conventional MMCs. MMCs containing carbon nanotubes are being developed and projected for diverse applications in various fields of engineering like automotive, avionic, electronic and bio-medical sectors. The present investigation deals with the synthesis and characterization of hybrid magnesium matrix reinforced with various different wt% (0-0.45) of multi wall carbon nano tubes (MWCNT) and micro SiC particles prepared through powder metallurgy route. Microstructure and mechanical properties such as micro hardness and density of the composites were examined. Microstructure of MMNCs have been investigated by scanning electron microscope, X-ray diffraction and energy dispersive X-ray spectroscopy (EDS) for better observation of dispersion of reinforcement. The results indicated that the increase in wt% of MWCNT improves the mechanical properties of the composite.

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Fabrication and characterization of Al-matrix composites reinforced with amino-functionalized carbon nanotubes

Cited by 31 publications

References 37 publications

Graphene oxide and graphene nanosheet reinforced aluminium matrix composites: Powder synthesis and prepared composite characteristics

Graphene oxide and graphene nanosheet reinforced aluminium matrix composites: Powder synthesis and prepared composite characteristics

Aluminum foil reinforced by carbon nanotubes

Synthesis and Characterization of Multi Wall Carbon Nanotubes (MWCNT) Reinforced Sintered Magnesium Matrix Composites

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