Durable silver coating for mirrors

Patent · Tue Jun 20 04:00:00 EDT 2000

OSTI ID:20075853

Wolfe, J D; Thomas, N L

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.

• Sponsoring Organization: US Department of Energy
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 20075853
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ADHESIVES
ALUMINIUM
LASER MIRRORS
LAYERS
LIGHT BULBS
MIRRORS
PROTECTIVE COATINGS
REFLECTIVITY
SILVER
US NATIONAL IGNITION FACILITY
USES