Title

Inspection Methods for Porosity and Disbonds of Polyaniline (PANI) Coating on Aluminum Alloy 6061

Presenter Information

Daniel Hillis

Department

Mechanical and Aerospace Engineering

Major

Aerospace Engineering

Research Advisor

Zoughi, R.

Advisor's Department

Electrical and Computer Engineering

Abstract

This presentation is a trade study of methods of Nondestructive Evaluation (NDE) that would be “best” to check polyaniline (PANI) coating on a sheet of AA 6061 for porosity and disbonding. The criteria defined for a “best” method are field capability of the test, the testing method is safe, and the testing method can be used on a large scale. PANI is primarily used to prevent corrosion. Porosity and disbonding in a coating can and will trap contaminates that increase the rate of corrosion, completely negating the intended effect of the coating. The unique properties of this polymer restrict which methods can be applied to investigate its consistency. The results of this trade study suggest that a preferred method for checking the effectiveness, presence of porosity or disbonds, of a polyaniline coating is Ultrasonic Testing. Further research with experimental testing may suggest a better method that will meet the criteria.

Biography

Daniel is a senior in Aerospace Engineering at Missouri University of Science and Technology. He will graduate with a B.S. in Aerospace Engineering in May 2011. Daniel is involved in Missouri S&T’s satellite design team. The team is competing in a university small sat competition sponsored by the Air Force Research Lab. He is currently working on the Structures subsystem and working to develop a RSO (Resident Space Object) sensor for the satellite. Daniel looks forward to graduating in May and becoming a productive member of the aerospace industry.

Research Category

Research Proposals

Presentation Type

Poster Presentation

Document Type

Poster

Award

Research proposal poster session, Third place

Location

Upper Atrium/Hallway

Presentation Date

06 Apr 2011, 1:00 pm - 3:00 pm

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Apr 6th, 1:00 PM Apr 6th, 3:00 PM

Inspection Methods for Porosity and Disbonds of Polyaniline (PANI) Coating on Aluminum Alloy 6061

Upper Atrium/Hallway

This presentation is a trade study of methods of Nondestructive Evaluation (NDE) that would be “best” to check polyaniline (PANI) coating on a sheet of AA 6061 for porosity and disbonding. The criteria defined for a “best” method are field capability of the test, the testing method is safe, and the testing method can be used on a large scale. PANI is primarily used to prevent corrosion. Porosity and disbonding in a coating can and will trap contaminates that increase the rate of corrosion, completely negating the intended effect of the coating. The unique properties of this polymer restrict which methods can be applied to investigate its consistency. The results of this trade study suggest that a preferred method for checking the effectiveness, presence of porosity or disbonds, of a polyaniline coating is Ultrasonic Testing. Further research with experimental testing may suggest a better method that will meet the criteria.