Discussion
State whether the following is true or false.
The cooling part of a firing schedule needs as much attention as the heating part.
Answer: B
Correct answer: True
More ceramic ware is lost in cooling than in heating, because the cooling body is rigid and brittle and cannot relieve stress by deforming. The quartz inversion at 573 degrees and any large thermal gradient across a thick section both do their damage on the way down. A schedule that is carefully graded upward and then simply allows the kiln to cool at its own rate is only half a schedule.
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