Chapter 4. Electrophoretic Alumina Sol-Gel Coatings on Metallic Substrates

  1. John B. Wachtman Jr
  1. D. E. Clark,
  2. W. J. Dalzell and
  3. D. C. Folz

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310502.ch4

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

How to Cite

Clark, D. E., Dalzell, W. J. and Folz, D. C. (1988) Electrophoretic Alumina Sol-Gel Coatings on Metallic Substrates, in 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310502.ch4

Author Information

  1. Department of Materials Science & Engineering University of Florida Gainesville, FL

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374818

Online ISBN: 9780470310502

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Keywords:

  • electrophoresis;
  • depositing;
  • sol-gel method;
  • pH;
  • electroplating

Summary

Electrophoresis offers a novel method for depositing ceramic coatings onto a variety of substrates. In this work, hydrated alumina, prepared by the sol-gel method, was applied to aluminum alloy substrates. Electrophoretic coating provides two new control variables, voltage and time, to those already provided by simple dip-coating—sol chemistry (pH), sol composition and sol viscosity. The coatings produced are harder, thicker, and more dense than those obtained in dip-coating.