Zhu, We have been depositing Ni for years without a crucble liner. It works vey well. Charles Ellis Auburn University.... >>> zhxp@yahoo.com 5/27/2005 7:56 PM >>> 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.