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Preparation of Sol-Gel Coatings by Electrophoretic Deposition

Published online by Cambridge University Press:  21 February 2011

Hiroshi Hirashima
Affiliation:
Keio University, Faculty of Science and Technology 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223 Japan
Yusuke Obu
Affiliation:
Keio University, Faculty of Science and Technology 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223 Japan
Takayuki Nagai
Affiliation:
Keio University, Faculty of Science and Technology 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223 Japan
Hiroaki Imai
Affiliation:
Keio University, Faculty of Science and Technology 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223 Japan
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Abstract

Thin films of ZrO2 and lead zirconate-titanate, PZT, about 100 to 1000 nm in thickness, were prepared by electrophoretic deposition from transparent sols obtained by hydrolysis of metal alkoxides. Stainless steel plates and Pt-coated glass plates were used as substrates/electrodes. The applied field was up to 20 V/cm. The refractive indices of as dried films were higher than those of dip-coated films. High temperature oxidation of stainless steel plates was suppressed by the ZrO2 coatings. Uniformity of the chemical composition of the as-dried PZT films, determined by Auger electron spectroscopy, was better than the dip-coated PZT films.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

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