Hydrophobic coating including DLC on substrate
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United States of America Patent
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Jan 1, 2002
Issued Date -
N/A
app pub date -
Jun 1, 2000
filing date -
May 3, 1999
priority date (Note) -
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Abstract
A substrate is coated with a hydrophobic coating system including highly tetrahedral amorphous carbon that is a form of diamond-like carbon (DLC). In certain embodiments, the coating system is deposited on the substrate in a manner to increase its hydrophobicity. In certain embodiments, the coating system is deposited in a manner such that it has an average hardness of at least about 10 GPa, more preferably from about 20-80 GPa. In certain embodiments, the coating system includes first and second DLC inclusive layers that are deposited using one or more ion beam deposition devices, wherein different gases are used to deposit the respective DLC inclusive layers such that the overlying layer has greater scratch resistance characteristics than the underlying layer which functions as an anchoring layer.
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