| 摘要 |
<P>PROBLEM TO BE SOLVED: To manufacture an electrode to prevent chipping from occurring when finishing an electrode tip by machining, and to prevent the electrode tip from causing sputtering in a lighting initial stage. Ž<P>SOLUTION: In this method of manufacturing an electrode for a discharge lamp, the powder of BaCO<SB>3</SB>, CaCO<SB>3</SB>and SrCO<SB>3</SB>and the powder of tungsten oxide WO<SB>3</SB>that are stable in the atmosphere are first baked in the atmosphere for approximately two hours at 1,200°C (a). The powder baked in the atmosphere is mixed with the base powder of thallium and rhenium to set its ratio to the base power to 10-30 wt.% (b). The mixture powder is inserted into pores formed on a tip surface of an electrode formed of a high-melting-point metal (c). The mixture powder inserted in the pores is pressurized (d/e), and sintering treatment is carried out (f). Finally, the tip surface is cut into a conical shape (g), and the electrode is thus completed. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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