Chapter 16. Reaction of Zirconia with Silica at the Stoichiometry of Zircon

  1. John B. Wachtman Jr.
  1. Karen M. Trappen and
  2. Richard A. Eppler

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310526.ch16

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 10, Issue 1/2

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 10, Issue 1/2

How to Cite

Trappen, K. M. and Eppler, R. A. (1989) Reaction of Zirconia with Silica at the Stoichiometry of Zircon, in Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 10, Issue 1/2 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310526.ch16

Author Information

  1. Department of Chemical Engineering University of Lowell Lowell, MA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374832

Online ISBN: 9780470310526

SEARCH

Keywords:

  • stoichiometry;
  • ammonium chloride;
  • zirconia;
  • zirconium atoms;
  • cadmium sulfoselenides

Summary

Zirconia was combined with silica and mineralizers and fired in a neutral atmosphere. X-ray analysis showed zircon was formed, demonstrating that an oxygen atmosphere is not necessary for the formation of zircon. The reaction mechanism is the same as that forming zircon in air, involving transport of the silica as a volatile halide, followed by diffusion of silica and oxygen across the product layer to a reaction site on the zirconia.