Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1992-12-31
1993-12-14
Tufariello, T.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
C25F 500
Patent
active
052698904
ABSTRACT:
Removal of non-diamond carbon from a diamond substrate surface is accompled in an electrochemical apparatus comprising an electrolyte and spaced electrodes immersed in the electrolyte and having impressed voltage producing a sufficient electric field in the electrolyte to remove at least a portion of the non-diamond carbon. Removal of the non-diamond carbon is accomplished by disposing the substrate in the electrolyte without touching the electrodes for a time sufficient to dislodge at least a portion of the non-diamond carbon. The invention herein is also directed to diamond substrates having non-diamond carbon with a high resolution on its surface.
Kap George A.
McDonnell Thomas E.
The United States of America as represented by the Secretary of
Tufariello T.
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