Process for reducing particle defects in arc vapor deposition co

Details Process for reducing particle defects in arc vapor deposition co Process for reducing particle defects in arc vapor deposition co

1995-10-31

1998-04-14

Padgett, Marianne

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

2042984, 427530, 427528, 427566, 427580, 118723VE, 2191372, 21913743, C23C 1400, B23K 928

Patent

active

057387680

ABSTRACT:
A process for reducing particle defects in an arc vapor deposition coating on a substrate comprises the steps of providing a metallic wire mesh, providing an arc source adapted to impart a positive charge on coating macroparticles produced during arc vapor deposition, positioning the wire mesh in between the arc source and the substrate, applying a negative bias voltage to the wire mesh and entrapping positively charged macroparticles on the negatively charged wire mesh during coating deposition.

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White, Harry J.; "Modern Electrical Precipitation", Industrial Engineering and Chemistry; vol. 47, No. 5, pp. 932-939; May 1955 427/458.

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