| 摘要 |
PURPOSE:To enable an Mo pin to withstand its continuous oscillations which are carried out for a long time by forming a layer coated with a platinum group element or alloy containing its element at the surface of a molybdenum pin body. CONSTITUTION:At the surface of an Mo pin, a layer coated with a Pt group element or an alloy containing its element is formed as a coating which is not only superior to resistance to oxidation or heat resistance but also has conductivity and favorable adhesion to Mo as well. For example, Pt plating is performed at the rising part as well as over the bent part of an L-shaped pin of pure Mo. A cathode pin obtained in this way is mounted at a laser oscillator and in the case of oscillating laser beams, its surface is less susceptible to oxidation and then no arc-discharge develops and can be used for a long time without lowering discharge characteristics. |
