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Hi everybody! While constructing an own furnace, I'm thinking about reasonable dimensions of crucibles. In the moment, I plan to use Ta crucibles with a length of 85 mm (length of the heated part about half of that!), an ID of 11 mm, and an OD of 12.3 mm. Makes this sense? Or should we take rather more or less thickness of the material? What about embrittlement of Ta? And, may one use Mo crucibles instead of Ta? Thanks in advance, Joerg