Abayomi Adewale Akinwande

Federal University of Technology, Akure | futa

The utilization of TiB 2 particle reinforcement in aluminium matrix composites, particularly with Al6063, has been explored in this study for its resilience to mechanical erosion, low oxidation rate, and excellent heat conductivity. The composite was produced using stir casting with 9 wt% TiB 2 . The investigation focuses on wear behaviour, examini...

Now-a-days, metal matrix composites based on pure aluminium are widely used as a replacement for a wide range of applications thanks to their high strength-to-weight ratio, ductility, and thermal conductivity. Micron-sized (10-3 mm) borosilicate (mixer of Silica (SiO2) and Boron Oxide (B2O3)) glass particles were used to create a dispersion in an a...

The article presents the possibility of increasing the water resistance of gypsum binders (GBs) obtained based on synthetic gypsum by introducing additives derived from industrial wastes. Regularities were obtained for the influence of the type and amount of additives on the water/gypsum ratio (W/G), strength indicators and water resistance of high...

Reprocessing municipal wastes into useful engineering components is one way to reduce their environmental impact. This paper presents a report on an alternative experimental approach to reprocessing common environmental wastes like aluminum scraps, steel shavings, and coconut shells into eco-friendly engineering composite. Equally, response surface...

The present study investigated the influence of adding FeTi as supplementary reinforcement to B4C in an aluminum–silicon (Al-12Si) matrix for automobile applications. The FeTi alloy was introduced at 3, 6, and 9 wt.% alongside 5 wt.% B4C particles. The effects of such addition on the morphology, physical, and mechanical properties were examined. Th...

Ti6Al4V alloy is one of the most widely utilized engineering metals, but it has a reduced hardness for high-temperature abrasive applications. In order to modify the surface of a Ti6Al4V alloy plate, a Cobalt-Nickel (Co-Ni) powder combination with increased hardness and corrosion resistance was used during the laser cladding process. For optimal ef...

In this study, we examined the applicability of a response surface approach in the experimental design, parametric optimization, and formulation of predictive models in the 3D printing of aluminium-7075/Ti48Zr20Hf15Al10Nb7 shape memory high-entropy alloy (SMHEA) composite. The input variables consist of the SMHEA dosage (A), laser power (B), and po...

In this study, copper (Cu) particles were used as a replacement for ceramic particles in an AlSi10Mg matrix to lessen the brittleness often associated with ceramic particles when used as fillers in aluminum matrix. AlSi10Mg was combined with 0, 2, 4, and 6% Cu, and microwave sintering was performed at 300, 450, and 600 °C. The composites produced w...

On account of their lower densities and distinct properties, lightweight high entropy alloys (LHEA) are gaining prominence in the fabrication of particulate reinforced aluminum composites. In lieu of this, present report was conceived to achieve strength and ductility improvement in aluminum-7068 aerospace alloy by the inclusion of highly flexible...

Agricultural waste is one of the wastes with a significant value in producing environmentally friendly materials that can be used in the construction sector. This review paper focuses on the potential uses of walnut shell in some building materials. Walnut shell is a type of agricultural waste that can be converted from waste into usable materials...

Natural fibers and pozzolan have gained prominence in the development of concrete; however, there are few studies that have considered the combination of banana fiber and waste glass powder. In this work, 0.5%, 1.0%, and 1.5% banana fiber (BF) was employed as fiber reinforcement, while glass powder (GP) was used as pozzolan, partially replacing cem...

Recent studies are evaluating the use of particulates fabricated from agro-based residues as reinforcement for enhancing the properties of aluminium alloys. This report focuses on the optimization approach and modeling of responses for future prediction, which are absent from the majority of studies involving particle reinforcement of an aluminum m...

In developing countries, the importation of synthetic ceramic particles for particulate reinforcement of metal matrixes is costly, so locally sourced and sustainable alternatives are sought after Rice husk ash (RHA) at 3–12 wt.%, glass powder (GP) at 2–10 wt.%, and stirring temperature (ST) at 600–800 °C were evaluated for their effects on the elem...

In the present research work, microstructural, mechanical and tribological aspects of Aluminium alloy (AA) 7075 reinforced with Titanium (Ti), Tantalum Carbide (TaC), and Silicon Nitride (Si3N4) ceramic particles were explored by utilising stir casting. Mechanical attributes like compression, tensile, hardness and flexural were evaluated. Dry slidi...

The development of hybrid agro-metallic alloy and its composites has increased in the last few years to overcome the shortcomings of monolithic alloys. Using hard ceramic reinforcements would enhance the strength of the alloys and its composites during component building. One such ceramic reinforcement is the Titania (TiO2) powder, which possesses...

Recent studies have shown the benefits of utilizing ceramic particles as reinforcement in metal alloys; nevertheless, certain drawbacks, including loss of ductility, embrittlement, and decreases in toughness, have been noted. For the objective of obtaining balanced performance, experts have suggested the addition of metal particles as supplement to...

The use of fuel fired crucible furnace is essential in the foundries of developing countries owing to the luxury of electricity. Fuel fired crucible furnace are commonly used in recycling, casting, research and training activities in tertiary institutions, therefore, several attempts are being made to improve the performance and service life of fue...

The present study assessed the potential of engaging response surface analysis in the experimental design, modeling, and optimization of the strength performance of aluminum-7075 green composite. The design of the experiment was carried out via the Box–Behnken method and the independent variables are rice husk ash (RHA) at 3–12 wt.%, glass powder (...

The present-day structural application requires advanced materials at extreme conditions, and the development of it is not economically feasible. As a result, existing material in the composite form has more visibility to suit the purpose. The material's strengths and qualities must be examined before it can be recommended for use in harsh conditio...

Thermal efficient sandcrete bricks are masonry units with good thermal insulating properties. Wood fiber (WF) possesses low thermal conductivity, hence, its incorporation in mortar mix results in thermal efficient masonry units. Milled glass (MG) could be added for strength enhancement. This study incorporated WF into mortar mix at a constant dosag...

The use of ashes derived from various waste sources as supplements to synthesized ceramic reinforcement in metal matrices has been established. However, studies involving a combination of particulates from three different sources are rare. In a bid to further knowledge in this aspect of research and develop a green aluminium composite for automobil...

Aluminium 7075 (AA7075) is a desirable grade of aluminium alloy highly sought after for its high strength-to-weight ratio. In this study, AA7075/Fe1.2CrZnCuAlTi0.8 (HEA) composites were prepared by microwave sintering, and a response surface methodology (RSM) was employed in the experimental design and analysis of the results. The variable input fa...

The mechanical properties of coconut shell ash (CSA) reinforced polyester composite have been optimized. Various test specimens were developed by dispersing 10, 20, 30 and 40 wt.%, of CSA in unsaturated polyester resin in decreasing particle sizes of 40, 30, and 20 µm in an open mould using hand lay-up technique. Tensile, flexural, and impact stren...

Waste recycling and industrial wastewater treatment have always been of interest. A green approach was developed for the filtrate of synthetic gypsum production from water treatment coagulation sediments and spent sulphuric acid. Due to the high concentration of iron sulphate, concentrated filtrate showed good coagulation results, which were 5% low...

Background The re‐use of waste is the most important aspect of sustainable development for human health and environmental protection. Millions of tons of hazardous spent sulfuric acid and lime mud are produced by water treatment facilities every year. Unlike other types of waste, lime mud can sometimes be used for the thermal regeneration of lime....

The need for high strength and high-temperature performance Al 7075 is on the rise. Moreso, the process map and model for such a process is necessary. Present report involved the design of a process map for property optimization/minimization in the development of Al-7075 composite infused with thermally stable molybdenum (Mo) particles. Mo particle...

For additional strength increase, 5, 10, and 15% TiC was added to the quinary CoCrFeMnNi high entropy alloy (HEA) at laser powers of 100, 400, and 700 W while selective laser melting method was engaged in the fabrication. Microstructure, porosity, density, yield and tensile strength, elongation, and microhardness are among the parameters analyzed....

Ceramic particulates are often used in reinforcement of aluminium alloys. The use of this particulates results in embrittlement and lowering of ductility. In tackling this, the present study involved the use of relatively ductile metal particles (molybdenum) as reinforcement. Molybdenum (Mo) powder was blended with Al-7075 powder at 4, 8 and 12 wt....

Recent interest in using natural fibers as fillers in various composite materials has sparked the desire of researchers and manufacturing businesses to develop natural fiber composites that may be used as alternative, cheap, sustainable and ecoefficient materials in automobiles. In that respect, the present study was tailored towards harnessing the...

The development of agricultural waste doped fired bricks is an important step toward achieving lightweight eco-efficient bricks with improved thermal insulation property. Recent research in masonry has been tailored towards the production of energy efficient building by incorporating waste materials as additives. This effectuates a safe waste dispo...

Aluminium matrix composites significantly benefit the manufacturing sector due to the high strength-to-weight ratio. However, grain refinement was one of the major problems faced by the research community and also as-cast AA6063 contained eutectic silicon with sharp, long elongated laths that consequently reduces strength and limit their applicatio...

The high cost of building materials occasioned by the increased cost of constituent materials has contributed immensely to the problem of housing deficit faced in Africa and major developing countries of the world. Waste paper can be recycled into bricks but there are limited studies to that effect. Waste glass is used as partial cement replacement...

Towards developing green composite through waste recycling, the main objective of this work was to produce an Al6113 hybrid composite via stir casting with a combination of two different reinforcements, such as waste glass powder (WGP) and snail shell ash (SSA) particles. Samples mixtures were prepared and labelled as groups A, B, C, and D. Group A...

This study was conceived to develop the optimum mix for cement-stabilized bamboo fiber-reinforced clay bricks for low-cost farm settlements. The concept was concerned with the provision of houses in rural areas as incentive to encourage youth participation in farming activities and at the same time reduce rural-urban migration. The input factors fo...

Demand for particleboards keeps increasing and as such more trees are fell for its production, engendering deforestation. For the purpose of reducing falling of trees, this study, focused on recycling of waste paper in the development of paperboard as alternative to particleboards used for furniture and interior household applications. Kenaf fiber...

The swift rise in utilizing natural materials as additives in the manufacture of numerous composite systems has fueled the desire in many researchers and contemporary industries to create natural fiber composites that can be used as sustainable, low-cost substitute, as well as eco-friendly and eco-efficient materials for different applications. Alt...

Aluminum and its alloy are versatile metal materials engaged in various applications based on their high strength, corrosion resistance and light weight. However, there are many limitations to its applications when compared with steel. In a bid to improve on the properties, aluminum composites are developed. In this study, Al 6111 composite was dev...

Fabrication of complex and flat shapes is usually processed by milling operation with multi-point cutting tools. In this research, the potential of cryogenic and dry milling was investigated under varying cutting speed (50–250 m/min) and the feed (0.05–0.15 mm/tooth), while machining of AISI 52100 steel at a constant depth of cut. PVD TiAlN coated...

The quest for cost-effective and thermal efficient structural materials onto beating the high cost of construction is gaining more attention among researchers. This study focused on the blending of cement and sand with waste paper pulp into cost-effective structural materials. The composites were prepared in four mix groups with each containing a f...

In this research, the microstructural and mechanical properties of the as-cast and artificially aged Al6061-TiO2 alloy and its composites developed by the double stir casting process were studied. The reinforcements were added in different weight concentrations and artificial aging was done at 200 °C for 2 h. TiO2 particle reinforcement was adopted...

Waste wigs are often disposed off in their volume on landfills, thus constituting a nuisance to the environment. Recycling these wigs in masonry bricks is a way via which they can be recycled and reused. On such premise, waste wig fiber (WWF) was recycled by incorporating into the cement-sand-clay composite mix for masonry bricks production. The ch...

The development of new lightweight engineering materials with highly improved mechanical properties has been a thought-provoking issue of materials engineering lately. The attempt being made by the industrial and academic bodies has engendered the shift to composite materials over conventional ones. Aluminium reinforced composites are now being use...

Ceramic particulate like titanium dioxide play major role in enhancement of properties of aluminium composites for high strength-low weight applications. The major process used in the dispersion of the particles in the melt is the stir casting route. There is need for incremental studies on the modelling and optimization of the procedure. This stud...

For the purpose of reducing and reusing municipal wastes, used aluminum products, waste glass, and rice husk were selected and reprocessed into green-metal composite. The process entailed recycling of waste glass and rice husk into glass powder (GP) and rice husk ash (RHA), respectively. These were employed as additives in recycled aluminum melt. C...

Aluminum alloy and its composites have versatile applications which can be produced via a cost-effective stir casting technique. However, stir casting is faced with some challenges including segregation, occurrence of intermetallic phases, agglomeration, and inducement of residual stress. In view of minimizing these defects during the stir casting...

Towards developing a polymeric matrix characterized by high strength to cost ratio, polypropylene (PP) was hybridized with low-cost particulate snail shell (PSS) and kenaf fiber (KF) via compression moulding at 180 °C and 0.2 MPa. The developed composites were grouped into three and labeled as mix 2, 4, and 10. Each group entailed the blend of 5, 1...

Stir casting is a common metallurgical route in the casting of aluminum composites. Series of work done in this aspect considered the development of the composites with fixed stir casting parameters without applying an optimization approach. These parameters affect the microstructure and performance of the composites. The study is focused on the op...

The mechanical and thermal properties of clay bricks are important parameters that influence the durability and energy con- sumption of building bricks in service. This study investigates the influence of waste glass when combined with coconut shells on the prop- erties of burnt bricks. Particulate coconut shell (PCS) of −75 μm was added to Orita-O...

In this study, an investigation was carried out on the effect of waste glass particles (WGP) (sieved to -23 µm) with varying proportions of 2, 4, 6, 8, and 10 wt. % on the properties of Al-6061 alloy. The produced composite samples were subjected to various tests; density, porosity, tensile, impact, compression, and wear. The results showed that in...

The current study reports the effects of waste glass additives on the properties and compliance level of fired ceramic masonry bricks. In the course of producing durable bricks for masonry, waste glass powder sieved to 150 μm was added to clay, mixed with water and fired to 1000°C. The effects of the waste glass addition were investigated by subjec...

Roof tiles are important for roofing in housing construction. Different roof tiles are made of fired ceramics and concrete, polymer composite and metals. In this study, digital logic method (DLM) was employed in analyzing properties obtained for samples tested, with the view of optimizing, towards selecting most suitable material for roof tiles pro...

In order to determine optimum mix proportion of waste glass (WG) and wood saw dust (WSD) in fired bricks, suitable for housing construction, this study applied compliance to cost ratio (C-CR) analysis in evaluating properties of fired ceramic bricks mixed with varied proportion of waste glass (WG) and wood saw dust (WSD). Fired clay brick samples w...

Polymeric materials are widely employed in the production of ceiling tiles due to their attractive qualities such as thermal insulation, low water absorption characteristics, light weight, availability, cost effectiveness and their good surface finishing. This study focused on the production, property characterization and the optimization of five d...

In a bid to develop a cheaper alternative material for particleboard, fiber/ particulate reinforced cement-paper composites were produced. The paper-cement matrix had 12 wt. % of cement and the matrix was reinforced with 10 wt. % fixed amount of coconut shell powder and varied amount of palm kernel fiber (0, 0.5, 1.0, 1.5, 2.0, and 2.5 wt. %). Two...

Abstract In a bid to develop paper bricks as alternative masonry units, unmodified banana fibers (UMBF) and alkaline (1 Molar aqueous sodium hydroxide) modified banana fibers (AMBF), fine sand, and ordinary Portland cement were blended with waste paper pulp. The fibers were introduced in varying proportions of 0, 0.5, 1.0 1.5, 2.0, and 2.5 wt% (by...

Bamboo fibers (BF) treated in 1.3 Molar NaOH and particulate coconut shell (PCS) sieved to − 45 µm were incorporated into polyvinyl chloride (PVC) matrix towards improving the properties of PVC composite for ceiling boards and insulating pipes which sags and degrade with time needing improvement in properties. The process was carried out via compre...

Waste wig fibers, empty eggshell powder and waste paper were recycled in the development of composite boards as potential sustainable material for wall partitioning. Samples were produced by blending these wastes with cement in the presence of water and cured for 14 and 28 days. The samples produced were examined for density, porosity, thickness sw...

Polypropylene composites reinforced with coir fibre and yam peel particulate were produced using compression moulding machine. Treated and untreated coir fibres were used; 1.5 M NaOH was used for the treated coir fibres. Yam peel was grouped into two, treated and untreated; the treated was modified using 1 M solution of NaOH and HCl in the proporti...

This study reports the effect of fine sand addition on the properties of fired clay bricks. Fine sand was sieved to −75 μm and incorporated at varied weight proportions (5, 10, 15, 20, 25, 30, 35, and 40 wt.%) to clay in the preparation of fired bricks. The samples produced were oven dried at 110°C for 12 h, and fired at a temperature of 1,200°C in...

The scarcity of housing increases as population continues to rise all over the world. Despite government efforts at providing houses, yearly demand keeps on exceeding available houses and hence the hike in rent, the cost of erecting houses and the cost of building materials. This ultimately calls for a decisive solution. This study therefore applie...

Mechanical behaviour of fired bricks containing varied amount of fine sand (FS) and waste glass powder (GP) was investigated. FS and GP were added to bricks at varied amount of 0, 5, 10, 15, 20, 25, 30, 35 and 40 wt. %. Firing was done at 1200 o C and samples produced were evaluated for compressive and flexural strengths while microstructural analy...

One of the uses of particle board is in the design of speaker/woofer casing, but with increasing demand, the cost is skyrocketing, effects of which lead to the high cost of end-use woofer gadgets. Cement–paper composite reinforced with snail shell powder/banana fiber was developed as an alternative. The fiber was grouped into two; untreated banana...

Recycling and reuse of plastic waste by blending with virgin polymer has been affirmed to be the best way of managing the waste. Equally, agro-waste are best recycled than being burnt off. In the development of stronger and cheaper ecoefficient recycled PET composite for food packaging, this study focused on reinforcement of the blend of 20 wt. % r...

Effects of elevated temperature on thermo-mechanical properties of fired ceramic products reinforced with waste glass powder (WGP) were reported. Samples were produced by the addition of WGP to clay in varied amount and oven dried samples were fired in an electric furnace which was operated 1200 oC. Compressive and flexural strength were examined a...

This study evaluates the effect of treated and untreated jute fiber/eggshell particulate reinforced cement-paper matrix composites for ceiling board application. Treated jute fiber (TJF) was obtained by immersing untreated jute fiber (UJF) into 1.25 M sodium hydroxide (NaOH) solution in a shaker water bath maintained at 40 °C for 4 h. Eggshells (ES...