Microstructure Control of Porous Alumina Film Using Aqueous Sol Containing Trehalose |
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| Journal | Key Engineering Materials (Volume 350) |
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| Volume | Electroceramics in Japan X |
| Edited by | K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki |
| Pages | 7-10 |
| DOI | 10.4028/www.scientific.net/KEM.350.7 |
| Citation | Takeshi Miki et al., 2007, Key Engineering Materials, 350, 7 |
| Online since | October, 2007 |
| Authors | Takeshi Miki, Kaori Nishizawa, Kazuyuki Suzuki, Kazumi Kato |
| Keywords | Aluminium, Dip-Coating, Porous Film, Sol-Gel, Trehalose |
| Abstract | To fabricate porous and thick alumina films, we prepared an aqueous alumina hydroxide sol containing trehalose. The alumina films were deposited by dip-coating technique on glass substrates and heating at 500 °C. The maximum thickness of the film obtained by one-run dip-coating using the sol containing trehalose was over 1000 nm. The film was an aggregate of alumina particles with a diameter of 20-40 nm and pores were interstices between the particles. The porosity of alumina film can be controlled in the range of 48-65 % by changing trehalose concentration in the dip-coating solution. |
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