Chapter 6. Net-Shape Fabrication of Y-TZP Ceramic Through a Statistically Designed Experiment
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1993 The American Ceramics Society
A Collection of Papers on Engineering Aspects of Fabrication of Ceramics: Ceramic Engineering and Science Proceedings, Volume 14, Issue 11/12
How to Cite
Ghosh, S. K., Chatterjee, D. K., Koziol, D. R. and Majumdar, D. (1993) Net-Shape Fabrication of Y-TZP Ceramic Through a Statistically Designed Experiment, in A Collection of Papers on Engineering Aspects of Fabrication of Ceramics: Ceramic Engineering and Science Proceedings, Volume 14, Issue 11/12 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314272.ch6
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1993
Print ISBN: 9780470375280
Online ISBN: 9780470314272
Net-shape yttria-doped tetragonal zirconia polycrystal (Y-TZP) ceramic articles of various shapes and dimensions were fabricated using 15 000 psi uniaxial pressure and 1500°C sintering temperature. A statistically designed experiment was conducted to determine the parameters for uniaxial pressure as well as sintering temperature so that shrinkage and dimensions of the sintered parts could be controlled. Compacting pressure, relative humidity (moisture content) of the powder, sintering temperature, and sintering time were the variables of the designed experiment. Shrinkage rate, density, and dimensional tolerance of the articles were greatly influenced by the compacting pressure and the sintering temperature, whereas relative humidity and sintering time had no effect. Other factors that influenced the net-shape fabrication were crystal structure, grain size, fill ratio during compaction, and sintering schedule. Dimensional tolerance and shrinkage control to within ±0.001% were achieved.