Influence of sintering methods on the mechanical properties of aluminium nanocomposites reinforced with carbonaceous compounds: A review

Awotunde, Mary Ajimegoh; Adegbenjo, Adewale O.; Obadele, Babatunde Abiodun; Okoro, Avwerosuoghene Moses; Shongwe, Brendon M.; Olubambi, Peter Apata

doi:10.1016/j.jmrt.2019.01.026

Cited by 69 publications

(39 citation statements)

References 144 publications

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“…The densification by sintering depends on the size of powders, holding time, pressure, and temperature. [24] Longer holding time could lead to grain coarsening due to incessant heat supply. The process of sintering helps in compaction of the composites but does not improve the dispersion of the reinforcements such as CNTs in the matrix.…”

Section: Powder Metallurgymentioning

confidence: 99%

“…Thus, in recent years, several reports were published on tailoring the mechanical properties of MMCs by incorporating nanoreinforcements such as graphene, nanofiber, and CNTs . Although CNTs are widely accepted for the fabrication of bulk MMCs with excellent mechanical, chemical, thermal, and electrical properties, the nonuniform dispersion of CNTs in the metal matrix due to strong van der Waals forces remained a challenge for a long period until novel techniques of fabrication were proposed. The other challenge in mixing CNTs with Al matrix is its poor wettability.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Nanotube‐Reinforced Aluminum Matrix Composites

Mohammed

Chen

2019

Adv Eng Mater

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Herein, the investigations conducted in the area of aluminum (Al) matrix composites reinforced with carbon nanotubes (CNTs) are presented. The application of CNT reinforcement in Al alloys is driven by its exceptional chemical and mechanical properties. The critical issues in the processing techniques, challenges in the interfacial mechanisms between the Al matrix and CNTs, and strengthening effects due to the presence of reinforcements are reviewed. The mechanical properties of CNT/Al composites are found to be effectively enhanced with an addition of CNTs even at a small amount. The extent of strength improvements depends mainly on the dispersion of CNTs in the matrix and interfacial bonding between the matrix and CNTs. Limited theoretical modeling can predict the properties of CNT/Al composites to some extent, but without considering the detailed processing parameters. Based on the gaps identified here, future research directions are suggested, including the relationships between the processing parameters and micro-and nanostructures, and multiscale mechanical modeling and simulation, aiming to further understand the strengthening mechanisms and develop advanced CNT-reinforced Al and other metal composites for critical engineering applications.

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Section: Powder Metallurgymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Nanotube‐Reinforced Aluminum Matrix Composites

Mohammed

Chen

2019

Adv Eng Mater

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“…Its addition to aluminium matrix has been found to improve the material integrity by reducing density, increasing hardness, stiffness, wear and abrasion resistance. In addition, the machinability, damping capacity and coefficient of friction of the composite will be improved thereby making it adaptable to the automotive industry (Awotunde et al, 2019;Kumar & Theerthan, 2008;Ramnath et al, 2014).…”

Section: Fly Ashmentioning

confidence: 99%

“…The use of solid-state processes (powder metallurgy and extrusion) for producing aluminium matrix composites has been studied by several researchers (Chen et al, 2020;Gomez et al, 2009;Wąsik, Leszczy nska-Madej, Madej, & Goły, 2020). Powder metallurgy process involves the mixing, degassing and sintering of metal alloy and the reinforcements (Awotunde et al, 2019;Muni et al, 2019;Goyal & Marwaha, 2016;Hussain et al, 2017;Liu, Zhang, Gou, & Ding, 2017). The use of powder metallurgy as a fabrication process in the production of aluminium composite enhances easy control of material properties.…”

Section: Powder Metallurgymentioning

confidence: 99%

A review on primary synthesis and secondary treatment of aluminium matrix composites

Orhadahwe

Ajide

Adeleke

et al. 2020

Arab Journal of Basic and Applied Sciences

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In this paper, the primary synthesis and secondary treatment of Aluminium matrix composites (AMCs) has been reviewed. The renewed quest for component materials with high strength-to-weight ratio, unusual and superlative combination of properties for applications in automotive, aerospace, marine and warfare armoury manufacturing industries has increased the versatility potential of aluminium alloy-based composites. Several categories (synthetic and agro-based ceramics) of reinforcement materials for aluminium composite are discussed. The manufacturing/fabrication techniques which could be solid phase (powder metallurgy and rapid prototyping or 3 D printing method) or liquid phase (casting and pressure infiltration) methods are discussed in this review work. Secondary treatment such as heat treatment, forging and other thermomechanical treatments which improves the properties of as-synthesized composites are also discussed. A review synopsis of recent studies provides opportunity for concise but a more robust understanding of potential benefits and detrimental effects associated with the use of various primary synthesis routes and secondary treatment for manufacturing of ceramic reinforced AMCs. Despite the laudable research efforts that have been made towards development and enhancement of the properties of AMCs, this review work revealed that literature is very sparse on synergetic adoption of multi-synthesis route and multi-approach secondary treatment for producing AMCs. Sequel to the aforementioned unexplored research concept, some lacunae are identified and suggested for further elaborations and study.

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“…The feature of this method is that very fine reinforcement particles are formed. Moreover, interfaces between reinforcement particles and matrix are clean, which enhances the mechanical and physical properties of copper matrix composites [8,9].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Electrical Property of Ex-Situ and In-Situ Copper Titanium Carbide Nanocomposites

Việt

Oanh

2020

Metals

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In this study, ex-situ Cu-TiC nanocomposites of 1, 3 and 5 vol. % TiC and in-situ Cu-TiH2-C nanocomposites (corresponding to 5 vol. % TiC) were prepared using ball milling and spark plasma sintering methods. Powder mixtures were milled for 4 h at 400 rpm. As-milled Cu-TiC composite powders were consolidated under an applied pressure of 70 MPa. The phase composition, and microstructure of the composite samples were characterized by X-ray diffraction, and scanning electron microscope and transmission electron microscope techniques, respectively. With the increasing TiC content from 1 to 5 vol. %, the hardness of the ex-situ composites when sintered at 600 °C changed between 161.4 and 178.5 HV and the electrical conductivity decreased from 52.1 to 47.6% IACS. In-situ Cu-TiH2-C nanocomposite sintered at 950 °C had higher hardness and electrical conductivity than ex-situ Cu-TiC composite due to having a homogenous distribution of nano reinforcement particles and dense structure.

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Influence of sintering methods on the mechanical properties of aluminium nanocomposites reinforced with carbonaceous compounds: A review

Cited by 69 publications

References 144 publications

Carbon Nanotube‐Reinforced Aluminum Matrix Composites

Carbon Nanotube‐Reinforced Aluminum Matrix Composites

A review on primary synthesis and secondary treatment of aluminium matrix composites

Microstructure and Electrical Property of Ex-Situ and In-Situ Copper Titanium Carbide Nanocomposites

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