Chapter 72. Processtng and Mechanical Properties of Silicon Nitride Formed by Robocasting Aqueous Slurries
- Todd Jessen,
- Ersan Ustundag
Published Online: 28 MAR 2008
DOI: 10.1002/9780470294635.ch72
Copyright © 2000 The American Ceramic Society
Book Title
24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4
Additional Information
How to Cite
He, G., Hirschfeld, D. A. and Cesarano, J. (2008) Processtng and Mechanical Properties of Silicon Nitride Formed by Robocasting Aqueous Slurries, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294635.ch72
Publication History
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 2000
Book Series:
ISBN Information
Print ISBN: 9780470375693
Online ISBN: 9780470294635
- Summary
- Chapter
- References
Keywords:
- fieeform fabrication technique;
- optimization;
- silicon nitride ceramics;
- colloidal processing;
- computer aided design
Summary
Robocasting is a new fieeform fabrication technique for dense ceramics. It uses robotics to control deposition of ceramic slurries through an orifice. The optimization of concentrated aqueous Si3N4 slurry properties to achieve high green density robocast bodies and subsequent high sintered densities was investigated. The effects of pH, electrolyte, additives and solids loading on the dispersion and rheological properties of Si3N4 slurries were determined. The mechanical behavior of sintered robocast bars was determined and compared to conventionally produced silicon nitride ceramics.