Preparation of Ag-Cu Composite Nanoparticles by the Submerged Arc Discharge Method in Aqueous Media

Abstract

For this study, electrical discharge machining (EDM) and the submerged arc discharge method (SADM) were used to melt a silver-copper composite metal in deionized water through concentrated arc energy in order to produce metal fluids containing nano-and submicron particles. The fabrication process did not require additional chemicals, and was simple and efficient. The critical processing parameters for EDM were the discharge voltage and current as well as the on-off duration for pulse discharge; the sample concentration could be controlled under appropriate conditions. The experimental results revealed that, through electronic system design and manufacturing (ESDM), silver-copper composite metal particles could be achieved at a nano to submicron level. In addition, the results obtained varied according to differences in the on-off duration regarding pulse discharge. In this study, when the discharging parameter (T on -T off ) was at 30 : 50, nanocomposite fluids with an optimal concentration and small particles were obtained. The application of EADM could enable the mass production of composite metal fluids or particles at low cost and high efficiency. Employing EADM for the fabrication of composite metal fluids or particles warrants research attention, and the process itself can be developed further.

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

“…e discharge is nished after a period of time, and the product is taken out. e system framework is shown in Figure 3 [3].…”

“…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].…”

Comparison of graphene impregnated with/without nanosilver prepared by submerged arc discharge method

“…Subsequently, the dielectric liquid transformed the separated metal into nanoparticles immediately after the metal melted. 15 In Figure 3, the system is automatically controlled by VisSim 6.0, Visual Solutions, Inc. Westford, MA, USA and connected to computer system with RT-DAC4/PCI Mutli I/O Board. The monitoring system recorded data such as the discharge success rate, the motor sliding distance (etching level), and the voltages of both electrodes, whereas the circuit system tracked data such as the discharge circuit parameters, the discharge success rate, and the feedback control circuit parameters.…”

Application of Nano-Ag Fabricated by the Electrical Spark Discharge Method for Restraining Aspergillus Niger

“…This study focuses on the rst application of the ESDM fabricating the Ag colloid in the inhibiting the growth of Niger. Figure 1 shows the structural representation of ESDM 15) . The nanometal preparation parameters can be adjusted on the control panel, such as the discharge pulse width, magnitude of the current, high/low voltage, and with/without capacitance.…”