Method for producing highly reflective metal surfaces
Patent
·
OSTI ID:6770220
The invention is a novel method for producing mirror surfaces which are extremely smooth and which have high optical reflectivity. The method includes depositing, by electrolysis, an amorphous layer of nickel on an article and then diamond-machining the resulting nickel surface to increase its smoothness and reflectivity. The machined nickel surface then is passivated with respect to the formation of bonds with electrodeposited nickel. Nickel then is electrodeposited on the passivated surface to form a layer of electroplated nickel whose inside surface is a replica of the passivated surface. The mandrel then may be-re-passivated and provided with a layer of electrodeposited nickel, which is then recovered from the mandrel providing a second replica. The mandrel can be so re-used to provide many such replicas. As compared with producing each mirror-finished article by plating and diamond-machining, the new method is faster and less expensive.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- EDB-83-051179; ERA-08-018423
- Patent Number(s):
- None
- Application Number:
- ON: DE83006855
- OSTI ID:
- 6770220
- Country of Publication:
- United States
- Language:
- English
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