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.
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