Chapter 10. Effects of Nucleation and Crystallization on the Physical Properties of Gypsum Molds
- William M. Carty
Published Online: 26 MAR 2008
DOI: 10.1002/9780470294673.ch10
Copyright © 2001 The American Ceramic Society
Book Title
Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 22, Issue 2
Additional Information
How to Cite
Liu, Q., Grussing, J. and Mover, K. (2008) Effects of Nucleation and Crystallization on the Physical Properties of Gypsum Molds, in Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 22, Issue 2 (ed W. M. Carty), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294673.ch10
Publication History
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 2001
Book Series:
ISBN Information
Print ISBN: 9780470375723
Online ISBN: 9780470294673
- Summary
- Chapter
Keywords:
- nucleation;
- crystallization;
- gypsum molds;
- physical properties;
- plaster of paris
Summary
Plaster of pans (calcium sulfate hemihydrate, CaSO4 0.5H2O) is widely used to produce gypsum molds for the dinnerware and sanitaryware industries. When mixed with water, the calcium sulfate hemihydrate is hydrated to calcium sulfate dihydrate (CaSO4 2H20) to form gypsum molds. In this paper, the nucleation and crystallization during the hydration of hemihydrate will be discussed. The effects of crystal modifiers on physical properties of gypsum mold will be described. The state of the art of gypsum molds in the dinnerware industry will be outlined.