Chapter 47. A Comparison of the Electrical Properties of Ysz Processed Using Traditional, Fast-Fire, and Microwave Sintering Techniques.
- Edgar Lara-Curzio and
- Michael J. Readey
Published Online: 26 MAR 2008
Copyright © 2004 The American Ceramic Society
28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3
How to Cite
Ugorek, M., Edwards, D. and Shulman, H. (2004) A Comparison of the Electrical Properties of Ysz Processed Using Traditional, Fast-Fire, and Microwave Sintering Techniques., in 28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3 (eds E. Lara-Curzio and M. J. Readey), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291184.ch47
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 2004
Print ISBN: 9780470051498
Online ISBN: 9780470291184
- computer-controlled sample
Yttria-stabilized zirconia (YSZ) is an oxygen-conducting electrolyte used in solid oxide fuel cells (SOFCs). in this work, three different sintering techniques — traditional (low heating rate), fast-fire, and microwave — were investigated as a means of sintering 8-mol% YSZ. YSZ powders were isostatically pressed into pellets and sintered at 1350°C — 1500°C with rates ranging from 3°C/min (traditional) to 60 — 100°C/min (microwave and fast-fire). Sintered pellets were characterized using scanning electron microscopy (SEM) to determine microstructure and impedance spectroscopy to determine high-temperature electrical properties. the electrical conductivity of the sintered samples ranged from 0.08 to 0.20 S/cm at 1000°C. While the dependency of density and grain-size on sintering temperature was different for the three techniques, there were no significant differences in the relationships of density and electrical conductivity to grain size.