HOT PRESSING OF CERAMIC POWDERS

Abstract

The processes involved in the production of dense ceramics from powder materials by the simultaneous effect of pressure and heat at temperatures above 1500°C are outlined. The factors leading to the choice of this method of fabrication, and the general principles involved in hot pressing, are first dealt with, and the advantages and disadvantages of the process are then discussed. Current techniques are described and their limitations considered. Examples of typical applications are given, and possible lines of future development are indicated.