Nanocomposite conformal corrosion barrier coating

Patent · Tue Dec 11 04:00:00 EST 2018

OSTI ID:1497688

Schindelholz, Eric John; Spoerke, Erik David; Sorensen, Neil R.; Grunlan, Jaime C.

Metals across all industries demand anti-corrosion surface treatments and drive a continual need for high-performing and low-cost coatings. Ordered thin films comprising aligned inorganic platelets dispersed in a polyelectrolyte polymer matrix provide a new class of transparent conformal barrier coatings for protection in corrosive atmospheres. For example, films assembled via layer-by-layer deposition, as thin as 90 nm, are shown to reduce copper corrosion rates by >1000× in an aggressive H₂S atmosphere. These coatings can provide high-performing anti-corrosion treatment alternatives to costlier, more toxic, and less scalable thin films, such as graphene, hexavalent chromium, or atomic layer deposited metal oxides.

• Research Organization: National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States); The Texas A&M University System, College Station, TX (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: NA0003525
• Assignee: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); The Texas A&M University System (College Station, TX)
• Patent Number(s): 10,150,873
• Application Number: 16/008,994
• OSTI ID: 1497688
• Country of Publication: United States
• Language: English