Preparation of Ag/Cu/Ti Nanofluids by Spark Discharge System and Its Control Parameters Study. (10th March 2015)

• Record Type: Journal Article
• Authors: Tseng, Kuo-Hsiung; Chiu, Juei-Long; Lee, Heng-Lin; Liao, Chih-Yu; Lin, Hong-Shiou; Kao, Yi-Syuan
• Other Names: Yousif Belal F. Academic Editor.
• Is Part Of: Advances in materials science and engineering. Volume 2015(2015)
• Publication Date: 2015-03-10
• Subjects: Materials science -- Periodicals; Materials science; Periodicals; 620.11
• DOI: 10.1155/2015/694672
• Languages: English
• ISSNs: 1687-8434

Abstract

Abstract : This study selected silver, copper, and titanium as the research objects to explore the relationship between nanofluids properties and electrical discharge machining (EDM) processes. Regarding the products, UV-visible spectroscopy (UV-Vis) was applied to measure the concentration distribution of nanofluids; zeta-size analysis is applied for measuring nanometal particles' Zeta-Potential and the size distribution of metallic particles in the fluid. Finally, various instruments, including scanning electron microscope (SEM), were applied to observe the shape, size, and composition ratio of metal particles after processing. According to the experimental results, the control of the discharge pulse time, in addition to affecting the concentration of metallic liquid and temperature in the process, affects the size of the metal particles after the process. As the resistivity of silver and copper is very low, at about 15 × 10 - 9 Ω·m, if T ON is set to between 10~50 μ s, good preparation efficiency can be obtained. The resistivity of titanium is 420 × 10 - 9 Ω·m, which is much larger than that of silver or copper. Hence, T ON should be set to approximately 100 μ s to achieve a good discharge success rate.