Chapter 10. Evaluation of an Atmosphere-Controlled Belt Furnace for the Sintering of Nitrogen Ceramics
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1990 The American Ceramic Society, Inc.
Ceramic Manufacturing Council - Kilns and Firing: Ceramic Engineering and Science Proceedings, Volume 11, Issue 11/12
How to Cite
Heslin, M. R., Norris, D. A., Fukuda, S. K. and Crayton, P. H. (1990) Evaluation of an Atmosphere-Controlled Belt Furnace for the Sintering of Nitrogen Ceramics, in Ceramic Manufacturing Council - Kilns and Firing: Ceramic Engineering and Science Proceedings, Volume 11, Issue 11/12 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313107.ch10
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1990
Print ISBN: 9780470374962
Online ISBN: 9780470313107
- sintering of nitrogen;
- sinterability of nitrogen;
- aluminum nitride;
- oxynitride spinel
A comparative study of the sinterability of nitrogen ceramics was conducted between a continuous belt furnace and a conventional batch furnace. Aluminum nitride, aluminum oxynitride spinel, and silicon nitride samples were fired under similar conditions in each furnace and characterized to determine the feasibility of using a continuous furnace to pressureless sinter these materials. Results reaffirm the necessity of using a powder bed and/or high gas over-pressures to limit decomposition of the Si3N4, with additions of 4 wt% Y2O3 and 4 wt% Al2O3, The shallow powder bed for the A/N samples in the belt furnace was deep enough to prevent significant dissociation of the A/N. There was no difference between the periodic furnace and the continuous furnace for the sintering of ALON. The A/N and ALON seem to be the most promising of the three for continuous processing.