Nanocomposite conformal corrosion barrier coating
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:
- Sandia National Lab. (SNL-NM), 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
- Resource Relation:
- Patent File Date: 2018 Jun 14
- Country of Publication:
- United States
- Language:
- English
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