Thermal evaporation of Mo is extremely difficult due to its high sublimation/evaporation point. For that reason, e-beam evaporation or magnetron sputtering ar generally preferred. See
Thanks for the reply. I know e beam is the best method, I am thinking from a thin wire of Mo and making a high current is it possible to vaporize some part of it.
You will certainly evaporate some material from a filament. In this work
Article Formation of Sublimable Nanographene Oxides by Reacting Coro...
I used the emission of W+ from the tungsten filament (bias 60V relative to ground; uncut spectrum in fig. 8.4 in my PhD thesis
Thesis Neue Kohlenstoffnanomaterialien aus massenselektierten molek...
) to calibrate my mass spectrometer, but it took hundreds of cycles before a film became even visible on the mass filter entrance lens, so that is very inefficient. Naturally, if you burn the filament, you will evaporate more, but that's not a viable strategy for reproducible surface coatings.