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Title: Method for producing highly reflective metal surfaces

Abstract

The invention is a novel method for producing mirror surfaces which are extremely smooth and which have high optical reflectivity. The method includes electrolessly depositing 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 electroplated nickel layer then is separated from 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.

Inventors:
 [1];  [2];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
864496
Patent Number(s):
US 4374002
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; highly; reflective; metal; surfaces; novel; mirror; extremely; smooth; optical; reflectivity; electrolessly; depositing; amorphous; layer; nickel; article; diamond-machining; resulting; surface; increase; smoothness; machined; passivated; respect; formation; bonds; electrodeposited; form; electroplated; inside; replica; separated; mandrel; re-passivated; provided; recovered; providing; re-used; provide; replicas; compared; mirror-finished; plating; faster; expensive; mirror surfaces; reflective metal; highly reflective; metal surface; inside surface; metal surfaces; novel method; mirror surface; producing highly; optical reflectivity; nickel layer; extremely smooth; amorphous layer; deposited nickel; /205/

Citation Formats

Arnold, Jones B, Steger, Philip J, and Wright, Ralph R. Method for producing highly reflective metal surfaces. United States: N. p., 1983. Web.
Arnold, Jones B, Steger, Philip J, & Wright, Ralph R. Method for producing highly reflective metal surfaces. United States.
Arnold, Jones B, Steger, Philip J, and Wright, Ralph R. Sat . "Method for producing highly reflective metal surfaces". United States. https://www.osti.gov/servlets/purl/864496.
@article{osti_864496,
title = {Method for producing highly reflective metal surfaces},
author = {Arnold, Jones B and Steger, Philip J and Wright, Ralph R},
abstractNote = {The invention is a novel method for producing mirror surfaces which are extremely smooth and which have high optical reflectivity. The method includes electrolessly depositing 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 electroplated nickel layer then is separated from 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

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