Articles | Nigerian Journal of Materials Science and Engineering

21

Research Article DOI: 10.67656/njmse.2020.lasxxxqt

Synthesis and Surface Characterisation of Cu-Doped Tin Oxide Thin Film for Optoelectronic Applications.

Adewumi Olusegun Emmanuel^*, Taleatu Bidini Alade, Adewinbi Saheed Adekunle, Busari Rafiu Adewale, Oyedotun Kabir Oyeniran, Omotoso Ezekiel

Copper doped tin oxide thin film was synthesised by electrodeposition technique. Film growth was maintained at cathodic potential of 1.60 V at a varied deposition time. Surface morphological studies of the deposited films were achieved by field emission scanning electron microscopy (FE-SEM). The scanning electron microscopy image revealed evenly distributed films, across the substrate with rice...

Jun, 2020 pp. 18-23 155 views 132 downloads

22

Research Article DOI: 10.67656/njmse.2015.e3gqhn08

Effects of single super Phosphate and wood ash on biogas production using cow dung

Shaibu-Imodagbe E. M.^*, MUSA R, Igboro S. B., Alfa M. I., Ishaq A.

This study was carried out to examine the catalytic effects of Single Super Phosphate (SSP) with Wood ash on the production of biogas from Cow Dung. The study was carried out in four identical reactors to enable variation of the catalyst combination (100gSSP/50gWoodash, 150gSSP/75gWoodash and 200gSSP/100gWoodash). The research showed that SSP and Wood ash could reduce the lag phase in anaerobic di...

Jun, 2015 pp. 169-173 153 views 115 downloads

23

Research Article DOI: 10.67656/njmse.2019.m7d79891

Physicochemical Parameters and Heavy Metals Characterization of Soil from Okpella Mining Area in Edo State, Nigeria

Edema O. G.^*, Abel Inobeme, Olori E., Adekoya M. A., Obigwa P. A.

The present study examines the physicochemical parameters and heavy metal contents of soil from Okpella Mining Area in Edo State. Top soil samples and control samples from about 200m from the mining area were analyzed for their heavy metals content using Atomic Absorption Spectrometer (AAS) techniques. The pH, electrical conductivity and organic matter were determined using standard procedur...

Dec, 2019 pp. 6-11 152 views 102 downloads

24

Research Article DOI: 10.67656/njmse.2021.v66pxn6i

Formulation and Development of Silicon Nanocomposite Based Conductive Inks

Okpanachi Benjamin^*, Ojata Abode Harry, Jafaru Braimah

This study presents the formulation and development of silicon nano-composite based conductive ink for possible screen printing of selected electronic devices. An XRD technique was employed to characterize and the result analysis showed that the particles were nano- sized Silicon nano-composite based conductive inks were formulated and developed from milled silicon nano-particle which served as...

Jul, 2021 pp. 29-35 151 views 113 downloads

25

Research Article DOI: 10.67656/njmse.2018.kdhpdcje

Quantitative Evaluation of Carbon-Enriched Stabilised Austenite in Cast Austempered Ductile Iron of Varying Section Thickness

Olawale John Oluyemi^*, Ibitoye Simeon Ademola, Oluwasegun Kunle Michael.

The quantity of carbon-enriched stabilised austenite (γHC) in austempered ductile iron (ADI) with various casting thicknesses was evaluated in this study. Ductile iron grade that conforms to ASTM A536 65-45-12 was cast, specimens of section thickness in the range of 5 to 25 mm were machined, isothermally treated to 820°C austenitising temperature, and austempered at austempering temperature (T ...

Jun, 2018 pp. 1-9 151 views 130 downloads

26

Research Article DOI: 10.67656/njmse.2018.lx5y2rz6

Dissolution Potential of a Nigerian Complex Covellite Ore by Ammonia-Ammonium Chloride Solution

Balogun Ayo F.^*, Alafara A. Baba, Abdulkareem Aishat Y., Raji Mustapha A., Olasinde Fausat T., Muhammed Muhammed O., Folahan A. Adekola

With continuous industrial demands and as the market potential of purified copper in Nigeria and around the world is on the increase, the development of cheap and eco-friendly methods for the processing of mixed and lower grade copper ores become paramount. Consequently, this study examines the effect of ammonia-ammonium chloride concentration, temperature and particle size on the extent of co...

Jun, 2018 pp. 10-15 151 views 138 downloads

27

Research Article DOI: 10.67656/njmse.2014.4sba1mdu

Modelling reliability of distribution network fault diagnostic tools using petri-nets

OKORIE P U^*, ALIYU U O, JIMOH B, SANI S. M

The aim of the work presented in this paper is to evaluate and develop a framework for reliability analysis of distribution system modeling and simulation using Petri-Nets. The problem of detecting, isolating and restoring fault events in dynamic systems modeled is considered. As the complexity of power system increases, fault diagnosis become very difficult task therefore necessitate the developm...

Dec, 2014 pp. 54-59 151 views 111 downloads

28

Research Article DOI: 10.67656/njmse.2023.t1zelwxy

Physico-Chemistry of Azara Barytes and its Suitability for Industrial Applications

Abdullahi, Y.^*, Lawal, A. O

Azara baryte was subjected to analysis, revealing an average specific gravity of 4.3 g/cm³ and a loss on ignition of 1.71 wt%. The contents of Fe2O3, Al2O3, and BaO were determined using atomic absorption spectrometry. Gravimetric methods were employed to measure SiO2 and SO3, while flame photometry was utilized for the determination of CaO, MgO, Na2O, and K2O. The average percentage values for th...

Jun, 2023 pp. 53-57 150 views 119 downloads

29

Research Article DOI: 10.67656/njmse.2020.7s236ddz

Green Synthesis and Characterisation of Magnetite Nanoparticles Using Factorial Design of Experiment

Olasupo Olayode Adesola^*, Abdulkareem Ambali Saka, Kovo Abdulsalami Sani, Abubakre Oladiran Kamardeen

Magnetite nanoparticles have been produced by green synthesis method. Aqueous extract of Mangifera indica leaves was used as reducing agent for co-precipitation of magnetite from iron (II) and iron (III) salts 3 in 1:2 molar ratio. Optimisation of the process was carried out using 2 factorial design of experiments taking into consideration stirring time of reaction medium, temperature and volume o...

Dec, 2020 pp. 68-80 150 views 106 downloads

30

Research Article DOI: 10.67656/njmse.2023.gmpv442d

Safety and Accident Prevention in the Textile Industry

ILIYA E. B^*, Abdulraheem Giwa

This paper emphasizes the importance of safety in manufacturing and the various consequences of accidents in the textile industry. It explores different types of accidents in these environments, including slips, falls, and machine-related incidents. The impact of accidents extends beyond injured workers, affecting production, finances, and company reputation. The key to preventing accidents lies i...

Jun, 2023 pp. 40-45 149 views 141 downloads