SBIR Phase I: A Superior Corrosion Resistant Undercoating for Vapor Deposited Hard Coatings

Award Information
National Science Foundation
Award Year:
Phase I
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Evanston Materials Consulting Corporation
710 Central Avenue, Wilmette, IL, 60091
Hubzone Owned:
Minority Owned:
Woman Owned:
Principal Investigator:
Hamlin M. Jennings
(847) 491-4858
Business Contact:
Hamlin Jennings
(847) 491-4858
Research Institution:
This Small Business Innovation Research (SBIR) Phase I project will develop a new type of corrosion resistant undercoating for application to metal substrates prior to the deposition of a hard decorative top coat applied by physical vapor deposition (PVD). PVD metal nitride coatings such as TiN and ZrN are extremely hard, and thus provide excellent scratch and wear resistance. However, they do not provide adequate corrosion resistance because of micron-scale flaws that act as corrosion sites, and thus a corrosion-resistant underlayer is needed. This undercoat must be smooth, sufficiently hard to support the hard PVD coating, and provide good adhesion to both the substrate and to the PVD coating. Ideally, the undercoat would provide a leveling effect to minimize polishing of the metal substrate. Recently, a new method for coating metal with a thin layer of glass has been developed. This coating, which is being optimized as a protective outer coating for polished aluminum, has many of the attributes of a successful PVD undercoating including corrosion resistance, hardness, and leveling. The key technological step will be to develop good adhesion between this glass coating and a PVD coating, and that will be the main focus of the proposed research. PVD coatings are widely used for applications that require both durability and an attractive appearance; for example, metal-nitride coatings can be made to closely resemble polished metals including brass, gold, and chrome. Current applications include personal items (pens, glasses, watches, jewelry, etc.), door hardware, plumbing fixtures, decorative trim on automobiles, and architectural detailing. All these PVD applications require an undercoating to improve corrosion resistance, but current undercoating options are inadequate for a number of reasons such as cost and environmental impact. Electroplating, the most widely used undercoating, uses significant amounts of toxic chemicals. A new type of undercoating which could meet performance and cost requirements while being environmentally friendly would thus have significant and immediate market potential.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government