You can use thick graphite crucible for Ni evaporation. We are using it from long time. On 5/28/05, X.P. Zhuwrote: > Dear members, > I am using E-beam to evaporate Ni. The crucible is > made of tungsten. But it seemed that fused Ni could > "eat" tungsten. I wonder whether they have formed some > kind of alloys. Should I replace the tungsten crucible > by other metals, such as molybdenum? Thank you very > much.