Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy

Various materials and chemical synthesis techniques have been investigated to develop better-quality nanoparticles with uniform shapes, sizes, dimensions, and dynamic properties. The development of defined nanoparticles (NP) with specific properties is still in search; therefore, in the present work...

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Main Author:	Irshad Ahamad, Khilji
Format:	Thesis
Language:	English
Published:	2023
Subjects:	TA Engineering (General) Civil engineering (General) TS Manufactures
Online Access:	http://umpir.ump.edu.my/id/eprint/39601/1/ir.Optimisation%20of%20electrical%20discharge%20machining%20for%20oxidation-free%20metallic%20nanoparticle%20synthesis%20of%20titanium%20alloy.pdf
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spelling	my-ump-ir.396012023-12-11T05:03:52Z Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy 2023-03 Irshad Ahamad, Khilji TA Engineering (General). Civil engineering (General) TS Manufactures Various materials and chemical synthesis techniques have been investigated to develop better-quality nanoparticles with uniform shapes, sizes, dimensions, and dynamic properties. The development of defined nanoparticles (NP) with specific properties is still in search; therefore, in the present work, an approach using electrical discharge machining (EDM) to generate nanoparticles is investigated. The established EDM process has been used to generate uniform nanoparticles with efficient surface-related properties. Electrical discharge machining is a widely used manufacturing process for producing precise and detailed parts, particularly dies, moulds, and other complex shapes. This process involves using an electrode to generate electrical discharges through a workpiece, melting and vaporising the material to achieve the desired shape. In recent years, this area has seen significant advances in improved surface finishing, greater flexibility and Increased accuracy and precision. These advancements have made EDM an even more valuable tool for a wide range of industries and enabled the production of high-quality parts with greater efficiency and precision. As a result of new advancements, this machine can synthesise nanoparticles in the form of waste derbies. In just the past few years, this has emerged as a phenomenon of exceptional interest for nanoparticle synthesis by EDM. It is generally agreed that EDM can synthesise nanoparticles. However, this is a matter of ongoing discussion and further optimisation and update. Some researchers have attempted to solve these problems, which are still under investigation. The present work proposes a simple way to address this issue using an optimisation process and to add oleic acid as a capping agent with dielectric and synthesis nanoparticles of titanium and copper. These results were measured using SEM, TEM, XRD, TGA/DTA and FT-IR approaches. These methods have demonstrated a marked improvement in the quality of material synthesis and produced oxidation-free nanoparticles. In synthesising Ti alloys and copper by electrical discharge machining, the main parameters affecting the synthesis were current, on-time, off-time, and tool gap. The present study was conducted using the RSM experimental design to develop NPs. The experimental findings and optimisation results, a current of 6A, a pulse-on time of 60 ns, a pulse-off time of 40 ns, and kerosene as the dielectric, enabled the fabrication of 10 mm to 20 μm spherical nanoparticles of titanium alloy and copper. High voltage was used to produce 100 to 200 μm sized particles. Oleic acid was used on the surface as a covering agent for the dielectric fluid to obtain oxidation-free particles. SEM Exhibit result of average 20 μm spherical size of particles and EDX revealed no other elements associated. FT-IR graph represents a functional group of oleic acid as a capping agent that prevents the particle from oxidation. XRD characterised the structural properties of synthesised particles to remain the same as before. No crystalline structure changes or phase changes are detected in the material property. 2023-03 Thesis http://umpir.ump.edu.my/id/eprint/39601/ http://umpir.ump.edu.my/id/eprint/39601/1/ir.Optimisation%20of%20electrical%20discharge%20machining%20for%20oxidation-free%20metallic%20nanoparticle%20synthesis%20of%20titanium%20alloy.pdf pdf en public phd doctoral Universiti Malaysia Pahang Faculty of Manufacturing and Mechatronic Engineering Technology Siti Nadiah, Mohd Safee
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Siti Nadiah, Mohd Safee
topic	TA Engineering (General) Civil engineering (General) TS Manufactures
spellingShingle	TA Engineering (General) Civil engineering (General) TS Manufactures Irshad Ahamad, Khilji Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
description	Various materials and chemical synthesis techniques have been investigated to develop better-quality nanoparticles with uniform shapes, sizes, dimensions, and dynamic properties. The development of defined nanoparticles (NP) with specific properties is still in search; therefore, in the present work, an approach using electrical discharge machining (EDM) to generate nanoparticles is investigated. The established EDM process has been used to generate uniform nanoparticles with efficient surface-related properties. Electrical discharge machining is a widely used manufacturing process for producing precise and detailed parts, particularly dies, moulds, and other complex shapes. This process involves using an electrode to generate electrical discharges through a workpiece, melting and vaporising the material to achieve the desired shape. In recent years, this area has seen significant advances in improved surface finishing, greater flexibility and Increased accuracy and precision. These advancements have made EDM an even more valuable tool for a wide range of industries and enabled the production of high-quality parts with greater efficiency and precision. As a result of new advancements, this machine can synthesise nanoparticles in the form of waste derbies. In just the past few years, this has emerged as a phenomenon of exceptional interest for nanoparticle synthesis by EDM. It is generally agreed that EDM can synthesise nanoparticles. However, this is a matter of ongoing discussion and further optimisation and update. Some researchers have attempted to solve these problems, which are still under investigation. The present work proposes a simple way to address this issue using an optimisation process and to add oleic acid as a capping agent with dielectric and synthesis nanoparticles of titanium and copper. These results were measured using SEM, TEM, XRD, TGA/DTA and FT-IR approaches. These methods have demonstrated a marked improvement in the quality of material synthesis and produced oxidation-free nanoparticles. In synthesising Ti alloys and copper by electrical discharge machining, the main parameters affecting the synthesis were current, on-time, off-time, and tool gap. The present study was conducted using the RSM experimental design to develop NPs. The experimental findings and optimisation results, a current of 6A, a pulse-on time of 60 ns, a pulse-off time of 40 ns, and kerosene as the dielectric, enabled the fabrication of 10 mm to 20 μm spherical nanoparticles of titanium alloy and copper. High voltage was used to produce 100 to 200 μm sized particles. Oleic acid was used on the surface as a covering agent for the dielectric fluid to obtain oxidation-free particles. SEM Exhibit result of average 20 μm spherical size of particles and EDX revealed no other elements associated. FT-IR graph represents a functional group of oleic acid as a capping agent that prevents the particle from oxidation. XRD characterised the structural properties of synthesised particles to remain the same as before. No crystalline structure changes or phase changes are detected in the material property.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Irshad Ahamad, Khilji
author_facet	Irshad Ahamad, Khilji
author_sort	Irshad Ahamad, Khilji
title	Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
title_short	Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
title_full	Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
title_fullStr	Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
title_full_unstemmed	Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
title_sort	optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Manufacturing and Mechatronic Engineering Technology
publishDate	2023
url	http://umpir.ump.edu.my/id/eprint/39601/1/ir.Optimisation%20of%20electrical%20discharge%20machining%20for%20oxidation-free%20metallic%20nanoparticle%20synthesis%20of%20titanium%20alloy.pdf
_version_	1794020293332697088

Optimisation of electrical discharge machining for oxidation-free metallic nanoparticle synthesis of titanium alloy

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