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Apparatus for producing diamond-like carbon flakesA vacuum arc from a spot at the face of a graphite cathode to a graphite anode produces a beam of carbon ions and atoms. A carbon coating from this beam is deposited on an ion beam sputtered target to produce diamond-like carbon flakes. A graphite tube encloses the cathode, and electrical isolation is provided by an insulating sleeve. The tube forces the vacuum arc spot to be confined to the surface on the outermost end of the cathode. Without the tube the arc spot will wander to the side of the cathode. This spot movement results in low rates of carbon deposition, and the properties of the deposited flakes are more graphite-like than diamond-like.
Document ID
19940005158
Document Type
Other - Patent
Authors
Banks, Bruce A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
January 21, 1986
Subject Category
ENGINEERING (GENERAL)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,565,618|NASA-CASE-LEW-13837-3
Patent Application
US-PATENT-APPL-SN-495381|US-PATENT-APPL-SN-591089|US-PATENT-APPL-SN-668433

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