Effect of Voltage towards Bubble Formation on Stainless Steel in Aqueous Suspension during Electrophoretic Deposition

Abstract:

The formations of bubble in the polystyrene latex (PSL) aqueous suspension were observed through out the electrophoretic deposition (EPD) process. The voltages in between of 20V to 50V were studied as a parameter for this study to investigate reason of bad quality of deposition when high voltage is applied in the EPD process. The objectives of the study are to observe the pattern and to determine of bubbles formation size on the stainless steel during pulse EPD process. The PSL suspension from pH 5 to 10 were prepared. The bubble formation was observed and size of bubbles was measured by using microscopic video. The difference voltages are applied on the suspension to observe the best condition with no or low bubbles formation when voltage applied. From the experiment, when the voltages increase, the number of bubbles increases. Observation shown that at low voltage the bubble tend to grow up and then burst during the process. As an addition, the sizes of bubbles decrease in base suspension though its increase in acid suspension.

• Periodical: Advanced Materials Research (Volume 1113)
• Pages: 300-304
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1113.300
• Online since: July 2015
• Authors: Rabiatul Adawiyah Abdol Aziz, N.F. Abu Bakar, E.R. Mohd Shaufi, N.H.A. Samsuri
• Keywords: Mechanism, Polystyrene Latex, Pulsed Direct Current, Suspension, Water

References

[1] Besra, L. & Liu, M. (2007). A review on fundamentals and applications of electrophoretic deposition (EPD). Progress in Materials Science, 52 (2007), 1-61.

DOI: 10.1016/j.pmatsci.2006.07.001

[2] Lubetkin, S., The motion of electrolytic gas bubbles near electrodes, Electrochimica Acta, vol. 48, p.357/375, (2002).

DOI: 10.1016/s0013-4686(02)00682-5

[3] Besra, L., Uchikoshi, T., Suzuki, T.S., & Sakka, Y. (2010).

[4] Nold, A., & Clasen, R. (2010). Bubble-free electrophoretic shaping from aqueous suspension with micro point-electrode. Journal of the European Ceramic Society, 30(14), 2971-2975.

DOI: 10.1016/j.jeurceramsoc.2010.03.005

[5] Naim, M. N., Iijima, M., Kamiya, H. & Lenggoro, I. W. (2010). Electrophoretic packing structure from aqueous nanoparticle suspension in pulse DC charging. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 360(1–3), 13-19.

DOI: 10.1016/j.colsurfa.2010.01.057

[6] Basu, R.N., Randall, C.A., Mayo, M.J. (2001). Fabrication of dense zirconia electrolyte films for tubular solid oxide fuel cells by electrophoretic deposition. J Am Ceram Soc, 84(1), 33–40.

DOI: 10.1111/j.1151-2916.2001.tb00604.x

[7] Ammam, M. (2012). Electrophoretic deposition under modulated electric fields: A review. RSC Advance, 2 (20) 7633-7646.

DOI: 10.1039/c2ra01342h

[8] Matsushima, H., Kiuchi, D., Fukunaka, Y. & Kuribayashi, K. (2009). Single bubble growth during water electrolysis under microgravity. Electrochemistry Communications, 11(8), 1721-1723.

DOI: 10.1016/j.elecom.2009.07.009