Nanotechnology-Based Self-Healing Coating System to Enable Extensive Use of Magnesium Alloys in Automotives

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-08ER85204
Agency Tracking Number: N/A
Amount: $99,987.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: 25 a
Solicitation Number: DE-PS02-07ER07-36
Small Business Information
Nei Corporation
400 Apgar Drive, Suite E, Somerset, NJ, 08873
DUNS: 042939277
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Amit Singhal
 (732) 868-3141
Business Contact
 Ganesh Skandan
Title: Dr.
Phone: (732) 868-3141
Research Institution
The fuel efficiency of automobiles can be enhanced by using lightweight materials such as magnesium alloys. However, unlike steel, magnesium alloys corrode rapidly. Although magnesium alloys can be protected against corrosion by chromate-based coatings, chromates are being phased out due to toxicity and environmental concerns. Therefore, there is an immediate need to develop non-chromate corrosion-resistant coatings with ¿self-healing¿ characteristics, similar to those of chromate-based coatings. This project will demonstrate the feasibility of producing coating formulations containing nanoscale corrosion inhibitors, such that the coating exhibits self-healing behavior. In Phase I, coatings will be applied on two different magnesium alloys, and the corrosion protection performance of coatings will be evaluated by electrochemical techniques (e.g., AC Impedance Spectroscopy and DC Polarization) and salt spray. Once the proof-of-concept is demonstrated, prototype automotive components will be coated and tested in Phase II. Commercial Applications and other Benefits as described by the awardee: The chromate-free coating technology should lead to an increase in the use of magnesium alloys in automobiles. Various automotive components, such as chassis, powertrain, and doorframe can be made from magnesium alloys. Improvement in the fuel efficiency of automobiles associated with the increased use of lightweight magnesium alloys should help to reduce the emission of greenhouse gases.

* information listed above is at the time of submission.

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