Study on La₂C₃-Gd₂O₃-Mo Secondary Emission Material

The powder metallurgy method was adopted to prepare the new type secondary emission material. The result of testing its emission performance shows that the molybdenum added with rare earth oxides may have good secondary emission performance, which has much to do with the activation temperature. After activating treatment at 1 360 ℃, the maximum secondary emission coefficient of this material may reach 2.65, exceding the application demand of the material(2.0).