Crucibles are a key piece of equipment in the world of high-temperature processing, serving as containers for molten materials while they are refined and cast.

Ceramics are the main material used for creating crucibles, but the specific type of ceramic used depends on the material being melted. In the case of platinum group metals (PGMs) and alloys, their high melting points (Table 1) significantly limit the choice of ceramics that can be used for melting compartments.