Research Experiments on Composite Tungsten Electrode - Preparation of Experimental Electrode Materials

Experimental materials: A electrode (Y₂O₃: CeO₂: La₂O₃ = 1: 2: 1), B electrode (Y₂O₃: CeO₂: La₂O₃ = 3: 1: 1), cerium tungsten electrode.

Preparation of experimental electrode materials: Preparing rare earth tungsten billet by powder metallurgy method, add the rare earth rare in the form of earth nitrate solution (it should carry out several experiments to obtain the optimum amount - the total ratio of rare earth oxide in billet is 2% the amount of each rare earth oxides should meet the ratio, because when sintering, the loss of rare earth oxides vary each other) to blue tungsten oxide. Swaging rare earth tungsten billet repeatedly to the diameter of 3.8mm, and then stretching to a diameter of 2.0mm, and then after straightening, cut it into tungsten rod (length of 240mm). Polishing the end of the tungsten rod into cone (top diameter of 0.5mm), obtaining experimental electrode materials.

 

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