THE HISTORY OF CRUCIBLES
The crucible is one of the oldest artifacts produced by men and it was ‘invented’ just before the Bronze Age (9,000 BC.) when men started working with metals to produce household utensils, tools and weapons. The frst crucibles were made of clay and vegetable fbers, until carbon was added to its composition, providing crucibles with higher thermal resistance.
One major technological upgrade happened when silicon carbide was added to the crucible composition, promoting high mechanical resistance. Crucibles were produced manually (just like we produce vases nowadays). Today, they are produced in high pressure rotating
presses and their production involves state-of-the-art technology