Contacts material for vacuum valve

Details Contacts material for vacuum valve Contacts material for vacuum valve

1994-01-13

1996-03-19

Kincaid, Kristine L.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

218123, H01H 3366

Patent

active

055004997

ABSTRACT:
A contacts material for a vacuum valve including an arc-proof constituent including at least one selected from the group of chromium, titanium, zirconium, vanadium and yttrium, an auxiliary constituent including at least one selected from the group of tantalum, niobium, tungsten and molybdenum and a conductive constituent including at least one selected from the group of copper and silver. In the contacts material, an amount of the arc-proof constituent is from 10% to 70% by volume, a total amount of the arc-proof constituent together with the auxiliary constituent is not more than 75% by volume and an amount of the conductive constituent is the balance.

REFERENCES:
patent: 4640999 (1987-02-01), Kashiwagi et al.
patent: 4743718 (1988-05-01), Santilli
patent: 4830821 (1989-05-01), Okutomi et al.

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