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Title: Durable silver coating for mirrors

Abstract

A durable multilayer mirror includes reflective layers of aluminum and silver and has high reflectance over a broad spectral range from ultraviolet to visible to infrared. An adhesion layer of a nickel and/or chromium alloy or nitride is deposited on an aluminum surface, and a thin layer of silver is then deposited on the adhesion layer. The silver layer is protected by a passivation layer of a nickel and/or chromium alloy or nitride and by one or more durability layers made of metal oxides and typically a first layer of metal nitride. The durability layers may include a composite silicon aluminum nitride and an oxinitride transition layer to improve bonding between nitride and oxide layers.

Inventors:
 [1];  [2]
+ Show Inventor Affiliations
  1. Discovery Bay, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
873051
Patent Number(s):
6078425
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
durable; silver; coating; mirrors; multilayer; mirror; reflective; layers; aluminum; reflectance; broad; spectral; range; ultraviolet; visible; infrared; adhesion; layer; nickel; chromium; alloy; nitride; deposited; surface; protected; passivation; durability; metal; oxides; typically; composite; silicon; oxinitride; transition; improve; bonding; oxide; passivation layer; oxide layers; adhesion layer; spectral range; transition layer; aluminum nitride; metal oxide; oxide layer; metal oxides; reflective layer; metal nitride; silver layer; multilayer mirror; chromium alloy; improve bonding; /359/427/

Citation Formats

Wolfe, Jesse D, and Thomas, Norman L. Durable silver coating for mirrors. United States: N. p., 2000. Web.
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Wolfe, Jesse D, & Thomas, Norman L. Durable silver coating for mirrors. United States.
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Wolfe, Jesse D, and Thomas, Norman L. Sat . "Durable silver coating for mirrors". United States. https://www.osti.gov/servlets/purl/873051.
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@article{osti_873051,
title = {Durable silver coating for mirrors},
author = {Wolfe, Jesse D and Thomas, Norman L},
abstractNote = {A durable multilayer mirror includes reflective layers of aluminum and silver and has high reflectance over a broad spectral range from ultraviolet to visible to infrared. An adhesion layer of a nickel and/or chromium alloy or nitride is deposited on an aluminum surface, and a thin layer of silver is then deposited on the adhesion layer. The silver layer is protected by a passivation layer of a nickel and/or chromium alloy or nitride and by one or more durability layers made of metal oxides and typically a first layer of metal nitride. The durability layers may include a composite silicon aluminum nitride and an oxinitride transition layer to improve bonding between nitride and oxide layers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}
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