Preparation and characterization of yttrium-doped tungsten powders for magnetron cathode

Y₂O₃ doped tungsten powders were prepared by method of spray drying combined with two-step hydrogen reduction to fabricate Y₂O₃-W cathode. The XRD, SEM results declare that by using this kind method, the yttrium-doped tungsten powders had an average size of 550 nm with homogenous distribution of Y₂O₃ throughout the tungsten. It is expected that cathode made of this kind of powders can provide good emission.