| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric contact having excellent breaking performance, dielectric-strength characteristics, and welding resistance, and further provide its manufacturing method, an electrode for a vacuum bulb and the vacuum bulb using it, and a vacuum interrupter. SOLUTION: This electric contact is made of a sintered alloy containing mainly Cr and Cu, and further containing 0.05 to 0.5 wt.% of Te, 100 to 3000 ppm of oxygen, 7.5 to 900 ppm of aluminum, and 15 to 750 ppm of Si. COPYRIGHT: (C)2005,JPO&NCIPI
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