tungsten electrode
5.The nanostructured W-La_2O_3 electrode materials were fabricated by high energy ball milling and hot pressed sintering in vacuum atmosphere. The influence of content of rare-earth oxide La_2O_3 on the electric properties of nanocrystalline tungsten electrode materials was investigated. The microstructure of cathode tip and La distribution after arc burning were observed through SEM and EDX.
6.In this paper,that a series of sodium tungsten bronze crystals were prepared by electrolysis of molten salts containing sodium tungstic and tungstic oxide was reported. The contents of sodium in the brones were determined by ion selective electrode analysis. The crystal structure and the lattice parameter were deduced by X-ray powder diffraction.

