Jason Bares

Phone Number: 215-898-4591
Email: jabares_at_seas.upenn.edu
Office: 112 Towne

Education:

Ph.D., Materials Science and Engineering, (2009), U. Florida
B.S., Materials Science and Engineering, (2005), U. Wisconsin-Madison

Research Interests:

Materials tribology, sliding electrical contacts, wear resistant coatings, anti-wear boundary films

Research in the field of oil additives is driven by a need for improved vehicle fuel economy and cleaner emissions. Of particular interest are advances in anti-wear additives. These additives form protective films on ferrous surfaces under boundary lubrication conditions. My current research focuses on characterizing the morphology and frictional properties of tribologically formed anti-wear films using atomic force microscopy and lateral force microscopy. Anti-wear film properties obtained through nanotribological characterization will be compared to the overall film behavior observed on the macroscale.

Publications:

Asymmetric Wear Behavior of Self-Mated Copper Fiber Brush and Slip-Ring Sliding Electrical Contacts in a Humid Carbon Dioxide Environment
N. Argibay, J.A. Bares, W.G. Sawyer. Wear (Article in Press), doi:10.1016/j.wear.2009.08.036, (2009).

In Situ Graphite Lubrication of Sliding Electrical Contacts
J.A. Bares, N. Argibay, P.L. Dickrell, G.R. Bourne, D.L. Burris, J.C. Ziegert, W.G. Sawyer. Wear, 267, 9-10, 1462-1469, (2009).

High Current Density Copper-on-Copper Sliding Electrical Contacts at Low Sliding Velocities
J.A. Bares, N. Argibay, N. Mauntler, G.J. Dudder, S.S. Perry, G.R. Bourne, W.G. Sawyer. Wear, 267, 1-4, 417-424, (2009).

Small Amplitude Reciprocating Wear Performance of Diamond-like Carbon Films: Dependence of Film Composition and Counterface Material
J.A. Bares, A.V. Sumant, D.S. Grierson, R.W. Carpick, K. Sridharan. Tribology Letters, 27, 79-88, (2007).

Conference Presentations:

J.A. Bares, N. Argibay, N. Mauntler, G.J. Dudder, D. Dickrell, G.R. Bourne, S.S. Perry, W.G. Sawyer. “Vapor Phase Lubrication of High Current Density Copper-on-Copper Sliding Electrical Contacts”, 2009 STLE Annual Meeting and Exhibition, Orlando, FL, May 17–21, 2009.

J.A. Bares, N. Argibay, N. Mauntler, G.J. Dudder, S.S. Perry, W.G. Sawyer. “High Current Density Copper-on-Copper Sliding Electrical Contacts at Low Sliding Velocity”, 2009 International Conference on Wear of Materials, Las Vegas, NV, April 19–23, 2009.

J.A. Bares, N. Argibay, N. Mauntler, G.R. Bourne, W.G. Sawyer. “Surface Characterization of Copper Anode and Cathode Surfaces after Sliding in Humidified Carbon Dioxide”, 2008 STLE Annual Meeting and Exhibition, Cleveland, OH, May 18–22, 2008.

J.A. Bares, N. Argibay, P.L. Dickrell, G.R. Bourne, D.J. Dickrell, N. Mauntler, D.W. Hahn, S. Roy, W.G. Sawyer. In Situ Profilometry of Sliding Electrical Contacts” 2007 STLE Annual Meeting and Exhibition, Philadelphia, PA, May 6–10, 2007.