Electroless nickel and ion-plated protective coatings for silvered glass mirrors
A preliminary examination of two methods of protecting second surface silvered glass mirrors from environmental degradation is presented. One method employed silver mirrors overcoated with Al, Ni, 304 stainless steel, Cr, or an Al/Cu alloy prepared by ion-plating. The other method used conventional wet process silver mirrors protected with a thin electroless nickel coating. No attempt was made to optimize the coatings for either method. These experimental mirrors were compared with conventional paint backed silver/copper mirrors after exposure to elevated temperatures and water vapor in order to estimate their relative environmental stability. The electroless nickel mirrors showed consistently more resistance to these stresses than either the conventional or ion-plated mirrors, suggesting that they may provide more durable field service.
- Research Organization:
- Battelle-Northwest, Richland, WA (USA). Pacific Northwest Lab.
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5086588
- Report Number(s):
- PNL-4257; ON: DE82015034
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MIRRORS
PERFORMANCE TESTING
PROTECTIVE COATINGS
STABILITY
CHEMICAL COATING
PLASMA ARC SPRAYING
ALUMINIUM
ALUMINIUM ALLOYS
CHROMIUM
COMPARATIVE EVALUATIONS
COPPER ALLOYS
HUMIDITY
NICKEL
SERVICE LIFE
SPECTRAL REFLECTANCE
STAINLESS STEEL-304
TEMPERATURE EFFECTS
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COATINGS
CORROSION RESISTANT ALLOYS
DEPOSITION
ELEMENTS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALS
NICKEL ALLOYS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SPRAY COATING
STAINLESS STEELS
STEELS
SURFACE COATING
TESTING
TRANSITION ELEMENTS
141000* - Solar Collectors & Concentrators