Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent
1989-10-17
1993-06-01
Nguyen, Nam X.
Chemistry: electrical and wave energy
Processes and products
Vacuum arc discharge coating
20429841, 427580, C23C 1424
Patent
active
052156400
ABSTRACT:
A shield to limit an electric arc discharge between an anode and a cathode to a designated portion of the cathode surface is fashioned in the shape of a limiting ring with good electrically conducting surface, e.g., copper or aluminum, surrounding this surface. Application of the invention, especially with heavy current arc discharges causes the tracing point of the discharge to move stochastically back and forth on the cathode.
REFERENCES:
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patent: 4600489 (1986-07-01), Lefkow
patent: 4620913 (1986-11-01), Bergman
patent: 4929322 (1990-05-01), Sue et al.
Buhl Rainer
Hasler Christoph
Balzers AG
Nguyen Nam X.
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