University of Delaware - College of Engineering
Hierarchical composites provide ultra-low wear without lubrication
Friction force microscopy reveals new insights about the atomic origins of friction
In-situ microtribometry provides new insights into the initiation, progression, and treatment of osteoarthritis
In-situ tribometry provides direct observational access to the buried tribological interface
Co-sputtering offers unique control over the nanocomposite structure of ultra-low wear materials
Instrumenting UD's G90 helps elucidate the effects of non-uniform wind fields on premature drivetrain failure
Probing the sliding interface directly provides novel insights into lubrication and wear mechanisms of cartilage
Solid lubricant coatings keep satellites moving in extreme extraterrestrial environments
Interferometry through transparent bodies probes effects of roughness and real contact areas on friction
Trace loadings of 40nm nanoparticles reduce wear of Teflon by 99.99%

Refereed Journal Articles

*corresponding author
  1. Mechanistic Studies in Friction and Wear of Bulk Materials

    W.G. Sawyer*, N. Argibay, D.L. Burris, and B.A. Krick, Annual Review of Materials Research 10.1146/annurev-matsci-070813-113533
  2. Quantitative characterization of solid lubricant transfer film quality

    J. Ye, H.S. Khare, D.L. Burris*, Wear 10.1016/j.wear.2014.04.017
  3. Surface and Subsurface Contributions of Oxidation and Moisture to Room Temperature Friction of Molybdenum Disulfide

    H.S. Khare, D.L. Burris*, Tribology Letters 10.1007/s11249-013-0273-0
  4. An analytical model to predict interstitial lubrication of cartilage in migrating contact areas

    A.C. Moore, D.L. Burris*, Journal of Biomechanics 10.1016/j.jbiomech.2013.09.020
  5. The effects of environmental water and oxygen on the temperature dependent friction of sputtered molybdenum disulphide

    H.S. Khare, D.L. Burris*, Tribology Letters 52 (2013) 485-493
  6. The extended wedge method: Atomic force microscope friction calibration for improved tolerance to instrument misalignments, tip-offset, and blunt probes

    H.S. Khare, D.L. Burris*, Review of Scientific Instruments 84 (2013) 055108
  7. Transfer film evolution and its role in promoting ultra-low wear of a PTFE nanocomposite

    J. Ye, H.S. Khare, D.L. Burris*, 1-2 (2013) 1095-1102
  8. Cell Friction

    T.E. Angelini*, A.C. Dunn, J.M. Uruena, D.J. Dickrell, D.L. Burris, W.G. Saywer, Faraday Discussions 156 (2012) 31-39
  9. Functional characterization of normal and degraded bovine meniscus: Rate-dependent indentation and friction studies

    V.J. Baro, E.D. Bonnevie, X. Lai, C. Price, D.L. Burris*, L. Wang*, Bone 51 (2012) 232-240
  10. Fluid load support during localized indentation of cartilage with a spherical probe

    E.D. Bonnevie, V.J. Baro, L. Wang, D.L. Burris*, Journal of Biomechanics 45 (2012) 1036-1041
  11. In situ studies of cartilage microtribology: Roles of speed and contact area

    E.D. Bonnevie, V.J. Baro, L. Wang, D.L. Burris*, Tribology Letters 41 (2011) 83-95
  12. A quantitative method for measuring nanocomposite dispersion

    H.S. Khare, D.L. Burris*, Polymer 51 (2010) 719-729
  13. Viscoelastic behavior of nanotube filled polycarbonate: Effect of aspect ratio and interface chemistry

    R.K. Duncan, R. Qiao, J.B. Bult, D. Burris, L.C. Brinson, L.S. Schadler*, Accepted to I. Journal of Smart and Nano Materials
  14. Measurement uncertainties in wear rates

    D.L. Burris, W.G. Sawyer*, Tribology Letters 36 (2009) 81-87
  15. Edges, Clearances and wear: Little things that make big differences in bushing friction

    R.S. Colbert, L.A. Alvarez, M.A. Hamilton, J.S. Steffens, J.C. Ziegert, D.L. Burris, W.G. Sawyer*, Wear 268 (2010) 41-49
  16. Addressing practical challenges of low friction coefficient measurements

    D.L. Burris*, W.G. Sawyer, Tribology Letters 35 (2009) 17-23
  17. A route to wear resistant PTFE via trace loadings of functionalized nanofillers

    D.L. Burris*, S. Zhao, R. Duncan, J. Lowitz, S.S. Perry, L.S. Schadler, W.G. Sawyer, Wear 267 (2009) 653-660
  18. Multifunctionality of Single-Walled Carbon Nanotube-Polytetrafluoroethylene nanocomposites

    J.R. Vail, D.L. Burris*, W.G. Sawyer, Wear 267 (2009) 619-624
  19. 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 (2009) 1462-1469
  20. Investigation of the Tribological Behavior of Polytetrafluoroethylene at Cryogenic Temperatures

    D.L. Burris*, Tribology Transactions 51 (2008) 92-100
  21. A Possible Link Between Wear and Temperature Sensitive Friction Behavior 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. Macroscopic Evidence of Thermally Activated Friction with Polytetrafluoroethylene

    D.L. Burris, S.S. Perry and W.G. Sawyer*, Tribology Letters 27 (2007) 323-328
  27. Hierarchically Constructed Metal Foam/Polymer Composite for High Thermal Conductivity

    D.L. Burris and W.G. Sawyer*, Wear 264 (2008) 374-380
  28. 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
  29. Tribological Behavior of PEEK Components with Compositionally Graded PEEK/PTFE Surfaces

    D.L. Burris and W.G. Sawyer*, Wear 262 (2007) 220-224
  30. 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
  31. A Low Friction and Ultra Low Wear Rate PEEK/PTFE Composite

    D.L. Burris and W.G. Sawyer*, Wear 261 (2006) 410-418
  32. Improved Wear Resistance in Alumina-PTFE Nanocomposites with Irregular Shaped Nanoparticles

    D.L. Burris and W.G. Sawyer*, Wear 260 (2006) 915-918
  33. 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
  34. 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
  35. 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
  36. 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
  37. Effects of Matrix Morphology on the Wear and Friction of Alumina Nanoparticles/Poly(ethylene) Terephthalate Composites

    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
  38. 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
  39. 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