Influence of surface treatment on emissive properties of niobium and molybdenum base alloys

The methods of emission and scanning electron microscopy, Auger-spectroscopy and X-ray microanalysis have been applied to investigate molybdenum- and niobium-base alloys. It is shown that methods of surface treatment and the temperature effect can considerably change the surface structure of objects, distribution of alloying admixtures in the near-surface layer and, as a rule, emission characteristics of alloys