NORTHWESTERN UNIV EVANSTON IL DEPT OF MATERIALS SCIENCE AND ENGINEERING
Ceramic rods have been sintered in cold wall single mode microwave cavities under a variety of conditions, including microwave heating and plasma heating. High sintering rates, high density and fine grain sizes were achieved for Beta-alumina and A12O3-TiC composites under favorable conditions. Thermal run-away often was observed in alumina during microwave heating if the heating rate was more than a few degrees per second. On the other hand, microwave plasma sintering of alumina was accomplished at very high heating rates 100 Ks.
This article is from 'Ceramic Transactions. Volume 21. Proceedings of the Symposium on Microwave Theory and Application in Materials Processing Annual Meeting of the American Ceramic Society (23rd) Held in Cincinnati, Ohio on April 29 - May 3, 1991,' AD-A253 631, p17-28.