Articles | Nigerian Journal of Material Science and Engineering

31

Research Article

Parametric Study on Bamboo Fibre Reinforced Polyester Composites: Role of Soaking Time, Catalyst Ratio, and Alkali Treatment

Adebisi A. A^*, Adeleke S. A, Sudi S. D

Bamboo fibres were treated with varying conditions of soaking time, accelerator/catalyst ratio and NaOH treatment concentration. These parameters play a major role in determining the performance properties of the developed polyester composite for structural applications. The reinforced 10 – 40 wt% bamboo fibre–polyester composites were fabricated using the hand layup te...

Jun, 2024 pp. 17-28

32

Research Article

Development and Experimentation of Hybrid Composite Gasket Using Sawdust Ash, Waste Glass Powder, and Polyester Resin

Adekunle Nurudeen Olatunde^*, Fasasi Rauf Olamide, Ismaila Salami Olasunkanmi, Daniel Samuel Damilare, Quadri Oluwaseun

The increasing environmental burden caused by industrial wastes has prompted the development of sustainable alternatives to conventional engineering materials. This study utilized sawdust ash, waste glass powder, and polyester resin to develop composite gasket materials, aligning with the principles of sustainability and circular economy. Five composite formulations were prepared with constant pol...

Jul, 2025 pp. 18-25

33

Research Article

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

34

Research Article

Optimal Design of the Same Lengths of Glass Condensers

Gonah C. M.^*, Gimba C. E., Garkida A. D., Yawas D. S.

The study explored solid modelling for possible optimization of conventional laboratory heat exchangers. 240mm, 360mm, 480mm, 600mm and 720mm lengths conventional and unconventional Allihn, Graham, Liebig and Zigzag condensing models were designed and fabricated. An automated coolant system for test running the condensing models was sketched, constructed and used for test running the models us...

Dec, 2016 pp. 18-22

35

Research Article

Electrical characterisation and microstructure of metal oxide-doped ZnO varistors

AKINNIFESI J. O^*, AKINWUNMI O O

Zinc oxide ceramic varistors were realized by doping ZnO with small quantities of MnO2 and PbO. The preparation technique of Direct Mixing of Constituent Phases (DMCP) was used. The samples were pelletized at a pressure of 1.24 X 103 N/cm2 and sintered in ambient atmosphere at a temperature of 850°C for a period of 36hours. They were characterized by measuring the current-voltage response to e...

Dec, 2014 pp. 18-21

36

Research Article

Finite Element Modelling of the Effect of Cutting Speed on Machining NST 37-2 Steel.

Oluwajobi A.O.^*, Egbebode O.E.

The Nigerian Steel (NST) 37-2 has vast applications as a substitute for foreign steels in Nigeria, but, its reliability, the effects of induced residual stress in the material, optimum cutting parameters, efficient process planning, chip formation process and surface roughness of the machined products are some of the challenges faced in the industry. In this study, the finite element modelling ...

Dec, 2019 pp. 19-26

37

Research Article

Assessment of Ahmadu Bello University, Zaria Waste Stabilization Pond Efficiency through Principal Component Analysis with R Programming

Kayode O.S.^*, Adayi L.E., SANNI M. I

In this study, the performance of the ABU (Ahmadu Bello University) waste stabilisation pond system was evaluated, with a primary focus on its efficiency of organic loading remover, and the interplay of key physicochemical parameters. Principal Component Analysis (PCA) application reveals strong correlations between BOD and selected parameters, notably turbidity and total suspended solids (TSS)...

Jun, 2023 pp. 20-27

38

Research Article

Development of an Indigeneous Potentiostat for Corrosion Application

Daniyan Ayodele Abeeb^*, Ige Oladeji Oluremi, Umoru Lasisi Ejibunu, Adeleke Bunmi Benjamin, Obanla Oluwaseun Solomon, Ojetokun David Oluwasayo, Adegbite Timothy Olanrewaju

In this study, a Potentiostat was developed for teaching and research purposes because Potentiostats are expensive equip ment and are of high importance in corrosion monitoring due to its various applications. The fabrication of this potenti ostat entailed the use of electronic devices and components, including operational amplifiers in the control circuit. A mi crocontroller was used to send data...

Jul, 2021 pp. 20-28

39

Research Article

Characterization of river Niger sand at Itobe with Iyoloko clay as a binder for foundry application

APATA A. O^*, YUNUSA Y, ADAMS F. V

This study investigates the characterization of River Niger Silica sand at Itobe with Iyoloko clay as additives for its possible uses in sand casting in the foundries. A measure of 5-25 %wt Iyoloko clay was added to the sand mixture in ratio 3:1. The chemical, physical and mechanical properties measured includes: chemical analysis of the Iyoloko clay, particle size, density, permeability, comp...

Jun, 2015 pp. 20-25

40

Research Article

Characterization and production of fatliquor from pumpkin (Cucurbita maxima) seed oil for leather and allied industries

Bulus Habila^*, Kogi Cecilia A, Igbehinadun Olajide J., Sunday Ojih, Salim Ahmed Sule, Kadanga Beatrice

The leather industry is ranked first in foreign exchange earnings from non-oil export products in Nigeria. Unfortunately, 5-10% of fatliquor applied to the resultant leather articles are imported with attendant negative effects on value addition and job creation. It is imperative to look inward into plants that can give good yield of oil that can be converted into fatliquor. Based on this, oil ...

Jun, 2016 pp. 21-25