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DEGREES
Ph.D. in Mechanical and Aerospace Engineering, University of Florida, Dec 2007
M.S. in Mechanical and Aerospace Engineering, University of Florida, May 2006
B.S. in Mechanical and Aerospace Engineering, University of Florida, May 2003
SERVICE
Assistant Professor, University of Delaware, 2008-
RELATED EXPERIENCE
University of Florida: Postdoctoral Associate 01/2008-09/2008
University of Florida: Research Associate 06/2003-12/2008
CONSULTING
N/A
STATE REGISTERED
N/A
SELECTED PUBLICATIONS
Book Chapters
- Polytetrafluoroethylene Matrix Nanocomposites for Tribological Applications, D.L. Burris, K. Santos, S.L. Lewis, X. Liu, S.S. Perry, T.A. Blanchet, L.S. Schadler, & W.G. Sawyer, Tribology of Polymeric Nanocomposites, editor: Klaus Friedrich and Alois K. Schlarb pp. 403-438
Journal Articles
- Addressing Practical Challenges of Low Friction Coefficient Measurements D.L. Burris*, W.G. Sawyer, Tribology Letters 35 (2009) 17-23
- The Effects of Nanoparticle Surface Functionality on the Tribological Properties of Alumina-Polytetrafluoroethylene Nanocomposites D.L. Burris*, S. Zhao, R. Duncan, J. Lowitz, S.S. Perry, L.S. Schadler, W.G. Sawyer, Wear 267 (2009) 653-660
- Multifunctionality of Single-Walled Carbon Nanotube-Polytetrafluoroethylene J.R. Vail, D.L. Burris*, W.G. Sawyer, Wear 267 (2009) 619-624
- Polymeric Nanocomposites for Tribological Applications, D.L. Burris, B. Boesl, J.R. Bourne and W.G. Sawyer, Macromolecular Materials and Engineering 292 (2007) 387-402
- A Possible Link Bewteen Wear and Temperature Sensistive Friction of MoS2, M.A. Hamilton, L.A. Alvarez, N. Mauntler, R. Colbert, D.L. Burris, C. Muratore, A. Voevodin and W.G. Sawyer*, Tribology Letters 32 (2008) 648-653
- Investigation of the Tribological Behavior of Polytetrafluoroethylene at Cryogenic Temperatures, D.L. Burris, Tribology Transactions 51 (2008) 92-100
- Sliding Orientation Effects on the Tribological Properties of Polytetrafluoroethylene, W.G. Sawyer, I. Jang, D.L. Burris, P.L. Dickrell, S.S. Perry, S. Philpot and S. Sinnott, Journal of Applied Physics 102 (2007) 123509-1 - 123509-7
- Spatial Geometric Effects on the Friction Coefficients of UHMWPe, A.C. Dunn, J.G. Steffens, D.L. Burris, S.A. Banks and W.G. Sawyer, Wear 264 (2008) 648-653
- Tribological Investigation of the Effects of Particle Size, Loading and Crystallinity on Poly(Ethylene) Terephthalate Nanocomposites, P. Bhimaraj, D.L. Burris, W.G. Sawyer, C.G. Toney, R.W. Siegel and L.S. Schadler, Wear 264 (2008) 632-637
- Macroscopic Evidence of Thermally Activated Friction with Polytetrafluoroethylene, D.L. Burris, S.S. Perry and W.G. Sawyer, Tribology Letters 27 (2007) 323-328
- Hierarchically Constructed Metal Foam/Polymer Composite for High Thermal Conductivity, D.L. Burris and W.G. Sawyer, Wear 264 (2008) 374-380
- Cumulative Damage Modeling of Solid Lubricant Coatings that Experience Wear and Interfacial Fatigue, N.L. McCook, D.L. Burris, N.H. Kim and W.G. Sawyer, Wear 262 (2007) 1490-1495
- Tribological Behavior of PEEK Components with Compositionally Graded PEEK/PTFE Surfaces, D.L. Burris and W.G. Sawyer, Wear 262 (2007) 220-224
- Tribological Results of PEEK Nanocomposites in Dry Sliding against 440C in Various Gas Environments, N.L. McCook, D.L. Burris, M.A. Hamilton and W.G. Sawyer, Wear 262 (2007) 1511-1515
- A Low Friction and Ultra Low Wear Rate PEEK/PTFE Composite, D.L. Burris and W.G. Sawyer, Wear 261 (2006) 410-418
- Improved Wear Resistance in Alumina-PTFE Nanocomposites with Irregular Shaped Nanoparticles, D.L. Burris and W.G. Sawyer, Wear 260 (2006) 915-918
- Epoxy, ZnO and PTFE Nanocomposite: Friction and Wear Optimization, N L. McCook, B. Boesl, D.L. Burris and W.G. Sawyer, Tribology Letters 22 (2006) 253-257
- Tribological Sensitivity of PTFE-Alumina Nanocomposites to a Range of Traditional Surface Finishes, D.L. Burris and W.G. Sawyer, Journal Tribology Transactions 48 (2005) 1-7
- Cryogenic Friction Behavior of PTFE Based Solid Lubricant Composites, N.L. McCook, D.L. Burris, P.L. Dickrell and W.G. Sawyer, Tribology Letters 20 (2005) 109-113
- Wear Resistant Solid Lubricant Coatings Made from PTFE and Epoxy, N.L. McCook, D.L. Burris, G.R. Bourne, J. Steffens, J.R. Hanrahan and W. Gregory Sawyer, Tribology Letters 18 (2005) 119-124
- Effects of Matrix Morphology on the Wear and Friction of Alumina Nanoparticles/Poly(ethylene) Terephthalate Composite, P. Bhimaraj, D.L. Burris, J. Action, W.G. Sawyer, C.G. Toney, R.W. Siegel and L.S. Schadler, Wear 258 (2005) 1437-1443
- Finite Element Analysis and Validation of Metal/Metal Wear in Oscillatory Contacts, N.H. Kim, D. Won, D.L. Burris, B. Holtkamp, G.R. Gessel, P. Swanson and W. G. Sawyer, Wear 258 (2005) 1787-1793
- Wear Rate Uncertainty Analysis, T.L. Schmitz, J. Action, D.L. Burris, J. Ziegert and W.G. Sawyer, Journal of Tribology 126 (2004) 802-808
SOCIETIES
STLE - Society of Tribologists and Lubrication Engineers (2003 present)
ASME - American Society of Mechanical Engineers (2003 present)
ASEE - American Society for Engineering Education (2006-present)
HONORS & AWARDS
2009 STLE Walter D. Hodson Award
2008 ASME Marshall B. Peterson Award
Best Poster Award at the Gordon Research Conference in Tribology, July, 2008
ASME Journal of Tribology Best paper award for Wear Rate Uncertainty Analysis, Oct. 2004
COURSES TAUGHT
Fall 2009: MEEG 215 Mechanics of Materials Laboratory
Spring 2009: MEEG 304 Machine Design - Elements
DISCOVERIES, INVENTIONS AND PATENTS
Low Friction Low Wear Polymer/Polymer Composite
Inventors: W. Gregory Sawyer and David L. Burris
US Patent 7314646
Multi-Layer Low Friction and Low Wear Polymer/Polymer Composites Having Compositionally Graded Interfaces
Inventors: W. Gregory Sawyer and David L. Burris
UF11767 Patent pending #10/140,775
Inert Wear Resistant PTFE-Based Solid Lubricant Nanocomposite
Inventors: W. Gregory Sawyer and David L. Burris
UF11839 Patent pending #11/443,384
Low Cost Nanocomposite Solid Lubricant Inventors: W. Gregory Sawyer, David L. Burris, Nicole L. McCook and Benjamin Boesel
UF11945 Patent Pending #11/385,062
In-Situ Lubrication of Sliding Electrical Contacts
Inventors: W. Gregory Sawyer, John C. Ziegert and David L. Burris
UF11766 Patent pending (nationalized) PCT/US2006/008152-11/908,088
PTFE Surface Treatment to Increase Wear Resistance
Inventors: W. Gregory Sawyer and David L. Burris
UF12146 Patent Disclosure
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