Rapid and Efficient Synthesis of Silver Nanofluid Using Electrical Discharge Machining

Abstract

The electrical discharge machining (EDM) system has been proven feasible as a rapid and efficient method for silver nanofluid preparation. This study prepared the silver nano-fluid via EDM and investigated the relationship between its process parameters and product characteristics. The prior study had found that the silver nano-fluid prepared by EDM contained both silver nanoparticles and silver ions. Silver ions had revealed the cause of the high suspension of the silver nanoparticles. To examine the relationship between the stability of silver nanofluid and the process parameters, this study quantified the relationship of process parameters to the material removal rate (MRR) of silver electrode and silver ion output rate (IOR) in the fluid, in order to achieve the most effective process parameter condition. Furthermore, the stability of silver nano-fluid was analyzed by various devices, including UV-Vis spectroscopy, size-distribution, and Zeta-potential analyzer. The effects of MRR, IOR, particle size, Zeta-potential, and optical properties of silver nanofluid under different process parameters are also discussed.

A Study of Photocatalysis of Methylene Blue of TiO2 Fabricated by Electric Spark Discharge Method

“…Advantages of ESDM are the following: the production process is conducted in dielectric fluid; thus, there will be no dust. It has rapid and mass preparation and is energy efficient, producing uniform particles [21]. The parameter settings for the nano-Ti colloid prepared by an electrical discharge machine in this paper are shown in Table 1.…”

A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining

“…They found that machining time was three times faster than the conventional one. Tseng, Lee [102] in their work focused in the preparation of the silver nanofluid by the EDM system. They derived the relationship between the process parameters and product characteristics.…”

“…The system used intense energy to splatter the electrode surface in dielectric fluid, and this method has a wide application in the nanofabrication technology, for example, Ni-C powders in pure ethanol, silver nano fluid in ethylene glycol, gold nanoparticles in water or ethanol and carbon nanotubes (CNTs). Tseng, Lee [102] explained that for the nanofluid application issue, nanofluid must be strongly stable which does not sediment before any application or analysis but many other factors affect the stability of suspension such as concentration of particles, particle size in diameter, solution properties, electrical conductivity and pH. A. Singh [103] studied the surface characteristics with the use of mixed carbon nano tubes (CNTs) in EDM to obtain high surface finish value because of the high thermal conductivity of CNTs.…”

Interactive Relationship between Silver Ions and Silver Nanoparticles with PVA Prepared by the Submerged Arc Discharge Method

“…e production of nanosized metallic silver particles with different morphologies and sizes using different methods has been reported in previous studies, such as the electric spark discharge system (ESDS) [1][2][3]. PVA (Mw 89,000-98,000, 99+% hydrolyzed, 341584, 9002-89-5, MDL: MFCD00081922) was the eligible polymer since it stands out for its viscoelastic behavior, hydrophilicity, chemical stability [4] and biocompatibility [5].…”