Browsing by Author "Shuaib-Babata Y.L"

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    Characterization of a Feldspar Mineral from Adogo, Ajaokuta Deposit
    (Published by Department of Civil Engineering, University of Ilorin, Ilorin, Nigeria, 2022-09-21) AMBALI IBRAHIM OWOLABI; Shuaib-Babata Y.L; Abdulraman S.O; Busari Y.O; Ajao K.S; Yusuf O. M
    This study considered the suitability of Adogo feldspar deposit in Kogi State, Nigeria for glass and ceramic production. The feldspar's sample was characterised through analysis of its physical, chemical and mineralogical properties. The results of the physical analysis showed that the mineral has a bulk density of 1.3551 g/cm3 and tapped density of 1.5209 g/cm3, which was used to determine the compressibility index and Hausner ratio. The index shows that the powdered mineral has a good flow character. The result also revealed that the mineral has a very low percentage of moisture content (1.75%) and clay content of 2.9%. Meanwhile, the chemical analysis showed that the feldspar mineral has dominant elements of Silicon (70%) and Aluminium (20%), with 73% and 23% oxides of silicon and aluminium respectively, negligible values of other elements and oxides in the feldspar. The mineralogical analysis revealed that the feldspar deposit was of low-grade soda feldspar, while the phases present showed that the mineral was a low-grade feldspar Albite Feldspar. Though, the physical and chemical properties of the feldspar revealed the potential of the feldspar as a suitable raw material in ceramics and glass industry but further beneficiation was needed to meet suitability for the production of ceramic and glass.
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    Performance and Corrosion Inhibitive Mechanism of Prosopis Africana Pod Extracts on Mild Steel in Acidic Medium
    (Faculty of Engineering, University of Port Harcourt, Nigeria, 2022-11-20) AMBALI IBRAHIM OWOLABI; Shuaib-Babata Y.L; Ayinde I.V; Ameen M.O; Busari Y.O; Abdulraman S.O; Ajao K.S
    This study investigates the influence of Prosopis Africana pod extract (PAPE) on corrosion behavior of mild steel in 1.0 M HCl. The Prosopis African Seed Extract (PASE) was previously characterized as a green corrosion inhibitor without considering its pod, which often constitutes environmental pollution. The PAPE solution was administered in varying concentrations of 0.0 g/ml to 10.0 g/ml as a green inhibitor of mild steel in 1M Hydrochloric (HCl) medium at room temperature using gravimetric, gasometric and electrochemical (Tafel Polarization) techniques. The volume of hydrogen evolution determined with gasometric process decreases as the concentration of the extract increases. The gravimetric technique recorded the highest inhibition efficiency (IE%) of 97.14% with a 1.0g/l concentration of PAPE. The electrochemical measurements of the corrosion current density (ICorr) decreased as the concentration of PAPE increased, with a maximum IE% of 80.59% (PAPE) at 1.0g/l recorded. Generally, IE% increases with the concentration of the extract. The decrease in the corrosion rate is caused by the intensified obstructive mechanism in the coupon surfaces instigated by the pod extract's adsorption. Hence, the extract from Prosopis Africana Pod is equally suitable as a green inhibitor for corrosion.
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    The effect of Magnesium addition on the performance of Aluminium-Zinc–Copper alloy as a sacrificial anode in seawater
    (2026-05-31) AMBALI IBRAHIM OWOLABI; Shuaib-Babata Y.L; Omokheni E.I; Busari Y.O; Abdulqadir L.B; Ejiko S.O; Ibrahim H.K; Muraina S.A
    This paper presents an experimental investigation on effectiveness of the addition of magnesium (Mg) on the performance of aluminium-zinc-copper (Al-Zn-Cu) alloy as a sacrificial anode to protect low carbon steel in seawater. The chemical compositions of mild steel sample, Aluminium alloyed and that of the medium (seawater) were determined using optical emission spectroscopy. Samples of Al-Zn-Cu alloy alloyed with 0.5%, 1.0% and 1.5% by weight of magnesium were prepared and produced by casting technique to produce the sacrificial anodes. Subsequently, the anodes were mechanically joined with the mild steel by force-fitting them together to produce specimens for corrosion test. The effectiveness of the sacrificial anodes for the protection of mild steel in seawater was examined using the gravimetric technique (for a period of 168 – 2016 hours) and potentiodynamic analysis. The results showed that the Al-Zn-Cu-1.0% Mg gave the maximum protection efficiency of 99.85% (for 2016 hours) and 99.98% through gravimetric and potentiodynamic analysis respectively, better than the efficiency of 99.26% (for 168 hours) and 99.53% (for 336 hours) attained by adding Zinc and Tin respectively to the aluminium alloy in previous studies. Thus, the addition of Mg to Al-Zn-Cu alloy was effective and suitable as a sacrificial anode in seawater
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    The Suitability of Using Environmental Waste (Polystyrene Foam, Sawdust and Eggshells) for Developing a Hybrid Composite for Ceiling Boards
    (Published by Faculty of Engineering, University of Nigeria, Nsukka, 2022-01-14) AMBALI IBRAHIM OWOLABI; Shuaib-Babata Y.L; Busari Y.O; Abdulraman S.O; Abdulqadir L.B; Ajao K.S; Aremu I.N; Arowolo I.O
    This study considers the suitability of using environmental wastes (polystyrene foam, sawdust and eggshell) for the development of composite materials for ceiling boards. The materials were collected from dumping sites and processed accordingly. The elemental compositions of the processed sawdust and eggshell were examined using Atomic Absorption Spectrometer (ASS) and plasma-optical emission spectrometer (Optimal 3100XL Perkin Elmer) respectively. Properties of the composite samples were determined using appropriate ASTM standards (ASTM D570, C109-95, D3479, E1530 and D7336/D7336M). The results show that the composite with a mix ratio of 5% Polystyrene, 10% sawdust and 40% eggshell exhibited the most suitable properties for ceiling board production or indoor uses in building: water absorption (0.52 and 6.17% for 2 and 24hours respectively), tensile strength (2.362 N/mm2), elongation at break (0.677 mm), compressive strength (0.1575 N/mm2), energy to break (0.016 N.m) and thermal conductivity of 0.0221 W/M.K. Thus, the production of suitable ceiling board using some bio-wastes can be domesticated in Nigeria