Microstructure Control of Porous Alumina Film Using Aqueous Sol Containing Trehalose

Abstract:

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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.

Info:

Periodical:

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:

T. Miki et al., "Microstructure Control of Porous Alumina Film Using Aqueous Sol Containing Trehalose", Key Engineering Materials, Vol. 350, pp. 7-10, 2007

Online since:

October 2007

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Price:

$35.00

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