Electrophoretic Deposition on Anodes from Aqueous Titania Suspensions with Titanate Solution

Abstract:

Titanate aqueous solution (TTIP-Lac) prepared by direct reaction of titanium tetraisopropoxide (TTIP) with lactic acid (Lac) in water shows characteristics of a polyanion and acts as a dispersant for preparing titanate suspension. Electrophoretic deposition (EPD) of aqueous titania suspensions was investigated with TTIP-Lac as a dispersant and hydroquinone (HQ) as an effective additive for bubble-free EPD of the aqueous system. The oxygen produced electrolytically by the EPD process at basic pH would be consumed by the chemical oxidation of HQ to quinone (Q). Bubble-free titania depositions were fabricated on anodes by EPD. A fired density with 99% theoretical density was obtained.

• Periodical: Key Engineering Materials (Volume 412)
• Pages: 313-316
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.412.313
• Online since: June 2009
• Authors: Osamu Sakurada, Mizuki Komaba, Seizo Obata, Minoru Hashiba, Yasutaka Takahashi
• Keywords: Aqueous Suspension, Electrophoretic Deposition (EPD), Hydroquinone, Titanate Solution, Titania

References

[1] M. S. J., Gani: Ind. Ceram., Vol. 14 (1994), p.163.

[2] P. Sarkar and P. S. Nicholson: J. Am. Ceram. Soc., Vol. 79 (1996), p. (1987).

[3] A. R. Boccaccini, C. Kaya, and K. K. Chawla: Composites Part A, Vol. 32 (2001), p.997.

[4] O. Sakurada, M. Saito, T. Ohya, M. Hashiba and Y. Takahashi: J. Ceram. Soc. Jpn., Vol. 115 (2007), p.846.

[5] T. Uchikoshi, K. Ozawa, B. D. Hatton and Y. Sakka: Trans. Mater. Res. Soc. Jpn., Vol. 25 (2000), p.107.

[6] O. Sakurada, K. Suzuki, T. Miura and M. Hashiba: J. Mater. Sci., Vol. 39 (2004), p.1845.

[7] J. Janca, F. Checot, N. Gospodinova, S. Touzain and M. Spirkova: J. Colloid Interface Sci., Vol. 229 (2000).