Andre Batako
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View article: Residual Stress Evolution of Graphene-Reinforced AA2195 (Aluminum–Lithium) Composite for Aerospace Structural Hydrogen Fuel Tank Application
Residual Stress Evolution of Graphene-Reinforced AA2195 (Aluminum–Lithium) Composite for Aerospace Structural Hydrogen Fuel Tank Application Open
This study investigates the fabrication and residual stress behavior of a 0.5 wt.% graphene-reinforced AA2195 aluminum matrix composite, developed for advanced aerospace structural applications. The composite was synthesized via squeeze ca…
View article: Effect of T6 and T8 Ageing on the Mechanical and Microstructural Properties of Graphene-Reinforced AA2219 Composites for Hydrogen Storage Tank Inner Liner Applications
Effect of T6 and T8 Ageing on the Mechanical and Microstructural Properties of Graphene-Reinforced AA2219 Composites for Hydrogen Storage Tank Inner Liner Applications Open
This study examines the mechanical and microstructural properties of graphene-reinforced AA2219 composites developed for hydrogen storage tank inner liner applications. A novel processing route combining high-energy ball milling, ultrasoni…
View article: Effect of Heat Treatments on the Microstructure, Corrosion Resistance and Wear Behaviour of Bainitic/Martensitic Ductile Iron Under Dry Sliding Friction
Effect of Heat Treatments on the Microstructure, Corrosion Resistance and Wear Behaviour of Bainitic/Martensitic Ductile Iron Under Dry Sliding Friction Open
The development of high-strength cast irons with multiphase metal matrix structures is one of the new areas of modern materials science and mechanical engineering. This is so because of the high dissipative properties of such materials, wh…
View article: Corrosion behaviour of hardened grey cast iron with continuous-wave infrared laser
Corrosion behaviour of hardened grey cast iron with continuous-wave infrared laser Open
Grey cast iron is employed under chemically and physically harsh conditions. Laser hardening is used to improve the material mechanical properties. The corrosion behaviour of laser hardened cast iron, however, needs to be studied in detail…
View article: Teacher Satisfaction in Online Education: A Two-Factor Model of Extrinsic and Intrinsic Factors Across Diverse Contexts
Teacher Satisfaction in Online Education: A Two-Factor Model of Extrinsic and Intrinsic Factors Across Diverse Contexts Open
Blended learning modes are becoming the norm in educational institutions. This research investigates the factors affecting teacher satisfaction with online lesson delivery. This study was undertaken in primary, secondary, and higher educat…
View article: An Experimental Investigation into the Enhancement of Surface Quality of Inconel 718 Through Axial Ultrasonic Vibration-Assisted Grinding in Dry and MQL Environments
An Experimental Investigation into the Enhancement of Surface Quality of Inconel 718 Through Axial Ultrasonic Vibration-Assisted Grinding in Dry and MQL Environments Open
Ultrasonic vibration-assisted grinding (UVAG) has proven to be beneficial for grinding difficult-to-machine materials. This work attempts to enhance the grinding performance of Inconel 718 through a comprehensive study of UVAG characterist…
View article: Mitigating hydrogen embrittlement in high-entropy alloys for next-generation hydrogen storage systems
Mitigating hydrogen embrittlement in high-entropy alloys for next-generation hydrogen storage systems Open
Green hydrogen can potentially reduce carbon emissions in several types of automotive, transport and energy industries. However, effective handling of hydrogen during generation, storage, transportation, and distribution poses significant …
View article: Innovation in sustainable composite research: Investigating graphene-reinforced MMCs for liquid hydrogen storage tanks in aerospace and space exploration
Innovation in sustainable composite research: Investigating graphene-reinforced MMCs for liquid hydrogen storage tanks in aerospace and space exploration Open
The demand for lightweight materials in space exploration applications has seen a significant rise. This study presents a novel approach by integrating graphene with Aluminium alloy (AA) 2900 powder, synthesized through High energy ball mi…
View article: Dynamic FEA Analysis of the Super Lightweight External Cryogenic Fuel Tank (SLWT) Made of Aluminium Alloy 2195–Graphene Nano Composite for Launch Vehicle Aerospace Application
Dynamic FEA Analysis of the Super Lightweight External Cryogenic Fuel Tank (SLWT) Made of Aluminium Alloy 2195–Graphene Nano Composite for Launch Vehicle Aerospace Application Open
This research presents a comprehensive dynamic finite element analysis (FEA) of a cryogenic fuel tank made from an innovative aluminium/lithium–graphene nano-composite material, assessing its suitability for aerospace launch vehicles carry…
View article: A Study of Sliding Friction Using an Acoustic Emission and Wavelet-Based Energy Approach
A Study of Sliding Friction Using an Acoustic Emission and Wavelet-Based Energy Approach Open
The purpose of this work is to study the mechanism of running-in during friction and to determine the informative parameters characterizing the degree of its completion. During friction, contact interaction of rough surfaces causes various…
View article: A Study of Sliding Friction Using Acoustic Emission and Wavelet-Based Energy Approach
A Study of Sliding Friction Using Acoustic Emission and Wavelet-Based Energy Approach Open
The purpose of this work is to study the mechanism of running-in during the friction and to determine the informative parameters characterizing the degree of its completion. During the friction, contact interaction of rough surfaces causes…
View article: Improving Commercial Motor Bike Rim Disc Hardness Using a Continuous-Wave Infrared Fibre Laser
Improving Commercial Motor Bike Rim Disc Hardness Using a Continuous-Wave Infrared Fibre Laser Open
This study is focused on examining the feasibility of applying laser hardening to a commercial metallic bike rim, employing a CW IR fibre laser. The research comprises two main phases. The first phase involves an assessment of the impact o…
View article: Potential of African Sustainable Renewable Energy – A View on Photovoltaic Options for Sub-Saharan Energy Shortage
Potential of African Sustainable Renewable Energy – A View on Photovoltaic Options for Sub-Saharan Energy Shortage Open
International audience
View article: Cryogen and heat treatments of boron-lacquered high-strength cast iron
Cryogen and heat treatments of boron-lacquered high-strength cast iron Open
This work investigated the effect of the interrupted isothermal quenching and subsequent cryogenic treatment. It studied aspects of direct hardening with the purpose of creating specific hardening structures in the matrix of high-strength …
View article: Synthesis and characterisation of graphene-reinforced AA 2014 MMC using squeeze casting method for lightweight aerospace structural applications
Synthesis and characterisation of graphene-reinforced AA 2014 MMC using squeeze casting method for lightweight aerospace structural applications Open
The need for lightweight materials towards aerospace has increased prominently. This paper focuses on introducing a novel reinforcement mixture of graphene with Al 2014 powder synthesised through ball milling technique. The synthesized pow…
View article: Solving scheduling problems with integrated online sustainability observation using heuristic optimization
Solving scheduling problems with integrated online sustainability observation using heuristic optimization Open
The paper deals with the issue of production scheduling for various types of employees in a large manufacturing company where the decision-making process was based on a human factor and the foreman’s know-how, which was error-prone. Modern…
View article: Characterization Studies on Graphene-Aluminium Nano Composites for Aerospace Launch Vehicle External Fuel Tank Structural Application
Characterization Studies on Graphene-Aluminium Nano Composites for Aerospace Launch Vehicle External Fuel Tank Structural Application Open
From the aspect of exploring the alternative lightweight composite material for the aerospace launch vehicle external fuel tank structural components, the current research work studies three different grades of Aluminium alloy reinforced w…
View article: Modelling and automation of a process for obtaining coagulum in treatment of industrial
Modelling and automation of a process for obtaining coagulum in treatment of industrial Open
This paper present the development a model for obtaining a coagulant for the process of cleaning and discoloration of industrial waste water and the development of a PID automated system for wastewater treatment. The description of the pro…
View article: Surface Finish and Property Evaluation of Direct Metal Laser Sintered (DMLS) Al-Si-10Mg alloy
Surface Finish and Property Evaluation of Direct Metal Laser Sintered (DMLS) Al-Si-10Mg alloy Open
Recently, Additive Manufacturing (AM) technique is widely recognized by engineering sectors for its novel capability to manufacture components directly from a Computer-Aided Model (CAM). Direct Metal Laser Sintering (DMLS) is an upcoming m…
View article: Application of Basalt Fibre Composites for Wind Turbine
Application of Basalt Fibre Composites for Wind Turbine Open
Currently. in many countries, studies are undertaken to study basalt fibre, which is one of the interesting reinforcing materials for polymer composite materials. Unlike traditional materials, when using fibre composites, product productio…
View article: Improvement of the flow of polyethylene terephtalate (PET) by interposition of ball strata at the inlet of the spinning die
Improvement of the flow of polyethylene terephtalate (PET) by interposition of ball strata at the inlet of the spinning die Open
Polyethylene terephthalate (PET) is a material developed by industrial manufacturers, but which is also abundantly found as a recovery material in many daily activities. Since it is largely used in the textile industry, the objective of th…
View article: Microstructural Design of the Cast Iron via Laser Hardening with Defocused Beam of the Continuous Wave CO2 Laser
Microstructural Design of the Cast Iron via Laser Hardening with Defocused Beam of the Continuous Wave CO2 Laser Open
The cast iron is widely used in mechanical parts due to its good properties, as damping, good fluidity, resistance to deformation, excellent machinability and low cost. However, the number of its applications are reduced because its low co…
View article: FEA study of Residual stress in composite materials in Abrasive Waterjet machining
FEA study of Residual stress in composite materials in Abrasive Waterjet machining Open
This work focused on the determination of residual stress in composite materials and structures during precision Abrasive Waterjet machining. A methodology was developed to determine and predict the residual stress using Finite Element Ana…
View article: Online Teaching: A Relational Study of Perception and Satisfaction
Online Teaching: A Relational Study of Perception and Satisfaction Open
Distance learning offers an affordable and convenient way to study and improve one’s knowledge in one’s spare time. This trend has been accelerated by information and communication technologies that have pushed to new boundaries the ways i…