Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites

Alaneme, Kenneth Kanayo; Bodunrin, Michael Oluwatosin; Awe, Adebimpe A.

doi:10.1016/j.jksues.2016.01.001

Cited by 103 publications

(74 citation statements)

References 24 publications

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“…The results showed with increasing of Groundnut Shell Ash (GSA), the fracture toughness and elongation percentage were improved at 6%wt Al-Mg-Si/SiC-GSA for 15.7% but with 10%wt the fracture toughness reported as 7.33% improvement. Hardness and tensile decreased with the increasing of the GSA volume friction of reinforcing phase [29].…”

Section: Silicon Carbide Reinforced Amcmentioning

confidence: 93%

Solid-State Recycling of Light Metal Reinforced Inclusions by Equal Channel Angular Pressing: A Review

2017

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Abstract. Solid-state recycling of light metals reinforced inclusions through hot Equal Channel Angular Pressing (ECAP) is performed to directly recycle metal scraps and reduce cost of material in engineering applications. The ECAP is one of the most important method in severe plastic deformation (SPD) that can convert light metals into finished products. This paper reviews several experimental and numerical works that have been done to investigate the effects of the ECAP parameters such as die angles, material properties, outer corner angle, friction coefficient, temperature, size of chips, pressing force, ram speed and direct effects of number of passes on the strain distributions. It also includes the performance enhancement of aluminium matrix composite reinforced ceramic-based particles that derived from direct recycled aluminium chips for sustainable manufacturing practices.

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Section: Silicon Carbide Reinforced Amcmentioning

confidence: 93%

Solid-State Recycling of Light Metal Reinforced Inclusions by Equal Channel Angular Pressing: A Review

2017

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“…Traditionally, groundnut shells are mostly used for making household fire especially in some part of Nigeria which constitute environmental hazard. Commercial success of groundnut shells have not been reported although Kanayo et al [22] used ash form of groundnut shell in conjunction with silicon carbide as reinforcement agent in the development of Al-Mg-Si hybrid composites and significant improvement in corrosion resistant and mechanical properties was reported. Also, in our previous work [23], groundnut shell powder was used in both treated and untreated form to reinforced recycled polyethylene and the result showed improvement in mechanical properties with evidence of biodegradations.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, physical and biodegradability performances of treated and untreated groundnut shell powder recycled polypropylene composites

Usman

Momohjimoh

Usman

2020

Mater. Res. Express

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In this study, groundnut shell powder (GSP) was used for the reinforcement of recycled polypropylene (recycled PP). The GSP consisting of two-particle sizes viz (0-250 μm and 250-420 μm) was partly treated with sodium hydroxide at room temperature and the GSP both treated and untreated were compressed and compounded with recycled PP to produce GSP-recycled PP composites. For comparison, recycled PP was equally produced as a control sample. The effects of GSP addition and sodium hydroxide treatment on recycled PP were investigated through the mechanical testing of the developed composites. The mechanical properties (tensile strength, hardness, and toughness) of the composites were evaluated and the tensile strength of both treated and untreated GSP-recycled PP composites is higher than the recycled PP and the treated GSP of particle size 0-250 μm having the highest tensile strength at 25 wt% GSP in recycled PP matrix. The hardness of the recycled PP increases with increasing content of GSP while the toughness decreases with increasing concentration of GSP in the recycled PP matrix. The water uptake of the GSP-recycled PP composites was equally studied, and the results revealed that the treated GSP-recycled PP composites has lower rate of water absorption as compared to untreated GSP-recycled PP composites Thermal stability and crystallinity of the composites and monolithic recycled PP were investigated, and it was discovered that the thermal stability and crystallinity of the polymer were enhanced with GSP addition. Morphological characterization of the selected samples through a scanning electron microscope (SEM) and x-ray diffraction (XRD) were equally done to validate the mechanical performance of the composites. Finally, biodegradability study on the composites and the control sample was conducted and it was found out that, the addition of GSP in both forms promotes the biodegradation of the recycled PP polymer. Such biodegradable GSP-recycled PP polymer composite materials are highly valuable for manufacturing food takeaway packages and some of the interior parts of the automobiles.

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“…Aluminium-based composites with bio-organic particles as the reinforcement are a topic of interest for the researchers due to their low costs and improved mechanical properties. To date, researchers have investigated the effects of various natural wastes used as reinforcement particles such as fly ash, 1,2 rice-husk ash, 3 bean-pod ash, 4 bamboo-leaf ash, red mud, groundnut-shell ash, 5 melon-shell ash 6 and bagasse ash 7 as the substitutes for the commercial reinforcement particles for producing cost-effective and new composite materials. Mazahery Ali et al 8 examined the impact of nano-SiC particles incorporated in the A356 alloy and concluded that SiC particles enhanced the mechanical properties of composites.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

Manickam¹,

Santhanam²,

Sivagnanam³

2019

Mater. Tehnol.

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An experimental investigation was performed on an LM25 aluminium alloy reinforced with silicon carbide (SiC), graphite (Gr) and moringa oleifera ash (MOA) particles. The composites with different proportions such as 5 w/% of SiC, 5 w/% of SiC + 1 w/% of Gr, 5 w/% of SiC + 3 w/% of Gr, 5 w/% SiC + 1 w/% MOA, and 5 w/% of SiC + 3 w/% of MOA were produced with the stir-casting method. The effects of the reinforcement particles on density, micro-hardness, grain size, porosity, particle distribution and microstructure were studied. A characterization study was made using optical microscopy (OP) and scanning electron microscopy (SEM). Based on the hardness and density results, the MOA-reinforced composites had better hardness and decreased porosity when compared to the Gr-reinforced composites. The MOA particles exhibited a homogeneous distribution in the matrix whereas the Gr particles had a few cluster formations.

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Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites

Cited by 103 publications

References 24 publications

Solid-State Recycling of Light Metal Reinforced Inclusions by Equal Channel Angular Pressing: A Review

Solid-State Recycling of Light Metal Reinforced Inclusions by Equal Channel Angular Pressing: A Review

Mechanical, physical and biodegradability performances of treated and untreated groundnut shell powder recycled polypropylene composites

Experimental investigation of LM25 alloy reinforced with SiC, Gr and MOA particles

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