Chapter 4. The Effect of Selected Processing Variables on Color Formation in Praseodymium-Doped Zircon Pigments

  1. William M. Carty
  1. Kimberly Hill1,
  2. Richard Lehman1,
  3. Dan Swiler2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294611.ch4

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 21, Issue 2

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 21, Issue 2

How to Cite

Hill, K., Lehman, R. and Swiler, D. (2008) The Effect of Selected Processing Variables on Color Formation in Praseodymium-Doped Zircon Pigments, in Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 21, Issue 2 (ed W. M. Carty), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294611.ch4

Author Information

  1. 1

    Rutgers University, Piscataway New Jersey

  2. 2

    Cerdec Corporation, Washington, Pennsylvania

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375679

Online ISBN: 9780470294611

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Keywords:

  • selected processing variables;
  • color formation;
  • praseodymium;
  • oxidized;
  • alkali-fluoride

Summary

Although praseodymium yellow pigments have been used in industry for many years, a quantitative understanding of processing parameters does not exist. A factorial design was used to investigate the effects of raw material particle size, mineralizer content, and processing temperature on color formation. Results show that strong yellow colors are developed near 900°C and little benefit is associated with higher temperatures. The presence of fluoride mineralizer is a critical variable, especially at lower processing temperatures. Overall, color formation correlates strongly with processing temperature and mineralizer content and to a lesser extent with zirconia raw material particle size.