Clay glossary

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Hardening On A process of heating decorated bisque ware to a temperature of approximately 650-700°C in order to burn out the organic media of the decoration and fix the colour prior to glazing.

Heat Work Energy input during firing, normally represented in terms of temperature and time. Pyrometric cones indicate the amount of heat work that has occurred during a firing.

Hot Pressing Densification of particles by the simultaneous application of heat and pressure. i.e. pressure sintering.