Process for applying thin molybdenum containing coatings on aluminum for solar energy absorption

Patent · Tue Aug 01 00:00:00 EDT 1978

OSTI ID:6532456

Schardein, D J; Lloyd, R D

A thin, adherent coating is described that is highly absorptive to solar energy and has a low emissivity for thermal energy, thereby being a useful selective surface for solar energy collection. This coating is formed on aluminum and its alloys by a simple electrochemical process and consists of complex aluminum and molybdenum oxides and metallic molybdenum which are deposited as a near-monatomic layer of molybdenum and its oxides. The coating withstands exposure to 400/sup 0/F (204/sup 0/C) and 1 hour in boiling water without change in properties.

• Assignee: Reynolds Metals Co.
• Patent Number(s): US 4104136
• OSTI ID: 6532456
• Resource Relation: Patent File Date: Filed date 3 Jun 1977
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ALUMINIUM
COATINGS
ALUMINIUM COMPOUNDS
ELECTROCHEMICAL COATING
MOLYBDATES
SOLAR ABSORBERS
SPECTRALLY SELECTIVE SURFACES
ALUMINIUM ALLOYS
ALUMINIUM OXIDES
AMMONIUM HYDROXIDES
HEAT RESISTANT MATERIALS
MOLYBDENUM
MOLYBDENUM OXIDES
ALLOYS
AMMONIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL COATING
DEPOSITION
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
MATERIALS
METALS
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METALS
SURFACE COATING
SURFACES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
141000* - Solar Collectors & Concentrators