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Preparation of Sol-Gel Coatings by ElectrophoreticDeposition

Published online by Cambridge University Press:  21 February 2011

Hiroshi Hirashima ,
Yusuke Obu ,
Takayuki Nagai  and
Hiroaki Imai
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 to1000 nm in thickness, were prepared by electrophoretic deposition fromtransparent sols obtained by hydrolysis of metal alkoxides. Stainless steelplates and Pt-coated glass plates were used as substrates/electrodes. Theapplied field was up to 20 V/cm. The refractive indices of as dried filmswere higher than those of dip-coated films. High temperature oxidation ofstainless steel plates was suppressed by the ZrO2 coatings.Uniformity of the chemical composition of the as-dried PZT films, determinedby Auger electron spectroscopy, was better than the dip-coated PZTfilms.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 95
Copyright
Copyright © Materials Research Society 1998

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References

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