Presentations

Thermally Activated Friction
W. G. Sawyer, S. S. Perry, S. B. Sinnott, S. R. Phillpot, A. A. Voevodin, X. Zhao, M. A. Hamilton, D. L. Burris, C. Muratore, L. Alvarez, R. Colbert, N. Argibay, N. Mauntler
MRS 2008, San Francisco

Novel Approaches to Following and Measuring Atomic-Scale Wear
W. G. Sawyer, S. S. Perry, M. A. Hamilton, N. Argibay, L. A. Alvarez, N. Mauntler, and A. A. Voevodin
MRS 2008, San Francisco

Precision Micromolding of Three-Dimensional Amorphous Metal Structures
Gerald R. Bourne
Florida AVS 2008, Orlando Florida

Surface Topography Evolution of MoS2 Containing Coatings During Environment Changes
J. G. Steffens, M. A. Hamilton, N. Mauntler, N. Argibay, W. G. Sawyer, A. A. Voevodin, C. Muratore
STLE 2007 Philadelphia

In-Situ Profilometry of Sliding Electrical Contacts
J. A. Bares, N. Argibay, P. L. Dickrell, G. R. Bourne, D. J. Dickrell, N. Mauntler, D. Hahn, S. Roy, M. Salmeron, W. G. Sawyer
STLE 2007 Philadelphia

Tribometers for In Situ Profilometry
N. Mauntler, T. Schmitz, M. Hamilton, J. Steffens, N. Argibay, J. Bares, W. G. Sawyer
STLE 2007 Philadelphia

Control of Interfacial Friction and Electrical Conductivity Using Carbon Nanotube Films
P. L. Dickrell, S. K. Pal, G. R. Bourne, C. Muratore, A. A. Voevodin, P. M. Ajayan, L. S. Schadler, W. G. Sawyer
STLE 2007 Philadelphia

Studies of Tribological Mechanisms in Polytetrafluoroethylene (PTFE)
D. L. Burris, P. Barry, P. L. Dickrell, S. S. Perry, S. Phillpot, L. S. Schadler, S. Sinnott, W. G. Sawyer
STLE 2007 Philadelphia

Micro-friction Measurement and Analysis of Oriented UHMWPE
A. C. Dunn, P. Chiu, S. B. Sinnott, W. G. Sawyer
STLE 2007 Philadelphia

In-Situ Lubrication of Sliding Electrical Contacts
N. Argibay, J. A. Bares, P. L. Dickrell, D. L. Burris, W. G. Sawyer
STLE 2007 Philadelphia

In-Situ Imaging and Analysis of Crack Propagation in Nanoparticle Filled Polymers
B. Boesl, G. R. Bourne, W. G. Sawyer, B. V. Sankar
STLE 2007 Philadelphia

Thermally Activated Friction
W. G. Sawyer, S. B. Sinnott, S. R. Phillpot, J. C. Ziegert, S. S. Perry, A. A. Voevodin, M. A. Hamilton, L. Avarez, G. R. Bourne, D. L. Burris
ICMCTF 2007, San Diego CA

Tribology at the Extremes: Smooth vs. Rough Contacts
W. G. Sawyer
Gordon Research Conference: Tribology 2006

A Methodology for Tribological Testing of Thin Metal Films
G. R. Bourne and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Effects of Particle Distribution and Size on the Mechanical and Tribological Properties of Epoxy Nanocomposites
B. P. Boesl, G. R. Bourne, W. G. Sawyer, and B. V. Sankar
STLE Annual Meeting, Calgary 2006

In Situ Lubrication of Sliding Electrical Contacts
P. L. Dickrell, J. A. Bares, J. C. Ziegert, W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Thermal Investigations of a Tribological Composite
D. L. Burris and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Environmental Sensitivity of PEEK Composites
N. L. McCook, D. L. Burris, and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Tribological and Sliding Electrical Properties of Multi-Walled Carbon Nanotubes
P. L. Dickrell, S. K. Pal, G. R. Bourne, C. Muratore, A. A. Voevodin, L. S. Schadler, P.M. Ajayan, and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Multidirectional Wear of UHMWPE and PEEK/PTFE Composite in Bovine Serum
A. C. Dunn, D. L. Burris, S. Banks, and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Cumulative Damage Modeling of Solid Lubricant Coatings that Experience Wear and Interfacial Fatigue
N. L. McCook, D. L. Burris, and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Matrix Assisted Pulsed Laser Evaporation
J. G. Steffens, A. A. Voevodin, and W. G. Sawyer
STLE Annual Meeting, Calgary 2006

Sliding Electrical Contacts
P. L. Dickrell, J. A. Bares, J. C. Ziegert, W. G. Sawyer
San Diego CA - Program Review 2006

Hierarchically Designed Polymer Nanocomposites for Tribological Applications
W. G. Sawyer and D. L. Burris
American Chemical Society, 2006

Electrical and Tribological Properties of Vertically Aligned Multiwalled Carbon Nanotubes
P. L. Dickrell, S. K. Pal, L. S. Schadler, P. M. Ajayan, and W. G. Sawyer
American Chemical Society, 2006

MURI: Multifunctional Nanocomposites for Air and Space Tribology
W. G. Sawyer
Program Overview
NC 2005

In Situ Solid Lubrication of Sliding Electrical Contacts
P.L. Dickrell, W. G. Sawyer, and J. C. Ziegert
ONR Program Review
Washington DC 2005

Temperature Effects on Friction Forces of Near Frictionless Carbon Films
P.L. Dickrell, W. G. Sawyer, and A. Erdemir
World Tribology Congress
Washington DC 2005

Tribology of Multi Walled Nanotubes
P.L. Dickrell, S. K. Pal, L. S. Schadler, P. M. Ajayan,
and W. G. Sawyer
World Tribology Congress
Washington DC 2005

Ultra Low Wear Rate PTFE/PEEK Composite
David L. Burris and W. Gregory Sawyer
World Tribology Congress
Washington DC 2005

Effects of Film Thickness on the Life of an Expanded PTFE and Epoxy Coating
Nicole L. McCook, David L. Burris and W. Gregory Sawyer
World Tribology Congress
Washington DC 2005

Development of an Ultra Low Wear Rate PTFE/PEEK Composite
David L. Burris and W. Gregory Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Vacuum Tribology of an Ultra Low Wear Rate PTFE/PEEK composite
Matt A. Hamilton, David L. Burris, John C. Ziegert, W. Gregory Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Effects of Film Thickness and PTFE Volume Fraction for an expanded PTFE and Epoxy coating
N. L. McCook, D L. Burris, W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Temperature Effects on Friction of Near Frictionless Carbon Films
P. L. Dickrell, W. G. Sawyer, A. Erdemir
STLE Annual Meeting
Las Vegas NV, May 2005

Wear of Gold Using a Nano-Indenter as a Tribometer
G. R. Bourne and W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Tribology of Aligned Arrays of Multiwalled Carbon Nanotubes
P. L. Dickrell, N. R. Raravikar, L. S. Schadler, P. M. Ajayan, and W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Surface Patterning on Metallic Glasses
J. A. Bardt, N. A. Mauntler,G. R. Bourne, T. L. Schmitz, J. C. Ziegert, W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Contact of Real Surfaces
W. G. Sawyer & M. A. Hamilton
STLE Annual Meeting
Las Vegas NV, May 2005

Design and Construction of an Abrasion Tribometer
L. A. Alvarez, S. L. Hagberg, W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Biotribology of Contact Lenses
A. C. Rennie, M. Sarntinoranont, W. G. Sawyer
STLE Annual Meeting
Las Vegas NV, May 2005

Frictional Anisotropy and Electrical Contact Resistance of Oriented Carbon Nanotube Surfaces
P. L. Dickrell, S. B. Sinnott, D. W. Hahn, N. R. Raravikar, L. S. Schadler, P. M. Ajayan, W. G. Sawyer
International Joint Tribology Conference
Long Beach California, October 2004

Tribological Sensitivity of PTFE-Alumina Nanocomposites to a Range of Traditional Surface Finishes
D. L. Burris & W. G. Sawyer
International Joint Tribology Conference
Long Beach California, October 2004

Wear Resistant Solid Lubricant Coating Made from PTFE and Epoxy
N. L. McCook, D. L. Burris, G. R. Bourne, J. Steffens, J. R. Hanrahan & W. G. Sawyer
International Joint Tribology Conference
Long Beach California, October 2004

A Gas Surface Interaction Model for Spatial and Time Dependent Friction Coefficient in Reciprocating Contacts: Applications to Near Frictionless Carbon
P. L. Dickrell, W. G. Sawyer, J. A. Heimberg, I. L. Singer , K. J. Wahl, A. Erdemir
International Joint Tribology Conference
Long Beach California, October 2004

Finite Element Analysis and Validation of Metal/Metal Wear in Oscillatory Contacts
W. G. Sawyer, D. L. Burris, Nam-Ho Kim
Panel Discussion on Computation in Tribology
International Joint Tribology Conference
Long Beach California, October 2004

Friction Coefficient of Soft Contact Lenses: Measurements and Modeling
Alison C. Rennie, Pamela L. Dickrell & W. G. Sawyer
International Joint Tribology Conference
Long Beach California, October 2004

Tribology of Oriented Carbon Nanotubes
P. L. Dickrell, S. B. Sinnott, D. W. Hahn, N. R. Raravikar, L. S. Schadler, P. M. Ajayan, W. G. Sawyer
3rd ESF Nanotribology Workshop
Portugal, September 2004

Analysis of Nanowear on Gold Foil
Jerry Bourne and W. Gregory Sawyer
International Surface Engineering Congress
Florida, August 2004

Tribology of Oriented Carbon Nanotubes
Pamela L. Dickrell and W. Gregory Sawyer
International Surface Engineering Congress
Florida, August 2004

Invited: BioTribology: Modeling of the Total Knee Replacement
W. Gregory Sawyer
International Surface Engineering Congress
Florida, August 2004

PTFE Nanocomposites
David L. Burris and W. Gregory Sawyer
STLE Annual Meeting
Toronto, May 2004

Experiments with NFC Under Variations in Pressure and Sliding Speed
Pamela L. Dickrell, W. Gregory Sawyer, and Ali Erdemir
STLE Annual Meeting
Toronto, May 2004

Friction Coefficient of Soft Contact Lenses: Measurements and Modeling
Alison C. Rennie, Pamela L. Dickrell, and W. Gregory Sawyer
STLE Annual Meeting
Toronto, May 2004

In Situ Solid Lubricant Deposition for Environmentally Benign Forming
Tim Barton, Jason Steffens, W. Gregory Sawyer, Tony L. Schmitz, John C. Ziegert, and Michael R. Lovell
STLE Annual Meeting
Toronto, May 2004

Mapping multidirectional sliding motions on the tibial component of total knee replacements using patient specific kinematics
W.G. Sawyer, M.A. Hamilton, M.C Sucec, B.J. Fregly, 
and S.A. Banks
ASME/STLE International Joint Tribology Conference
Florida, October 2003

Temperature Modeling in a Total Knee Joint Replacement using Patient Specific Kinematics
W.G. Sawyer, M. A. Hamilton, B. J. Fregly, and S. A. Banks
ASME/STLE International Joint Tribology Conference
Florida, October 2003

Fractional Coverage Modeling of Frictional Behaviors of Near Frictionless Carbon
Pamela L. Dickrell, W.Gregory Sawyer, and Ali Erdemir
STLE Annual Meeting, April 2003

Polymer Nanocomposites of PET and PTFE
David L. Burris, Jason E. Action, W. Gregory Sawyer, Praveen Bhimaraj, and Linda S. Schadler
STLE Annual Meeting, April 2003

Effects of Cryogenic Treatment on Wear Resistance of AISI D2 Tool Steel
Gerald R. Bourne, W.Gregory Sawyer, and Michael J. Kaufman
STLE Annual Meeting, April 2003

Spectrum Loading and Multidirectional Motion with a Pin-on-Flat Tribometer
Darren McGuire and W. Gregory Sawyer
STLE Annual Meeting, April 2003

Evolution of Wear in Bushings
Dan J. Dickrell and W. Gregory Sawyer
STLE Annual Meeting, April 2003

Composites Tribology: From Nanofillers to CMP
W.Gregory Sawyer
Rensselaer Polytechnic Institute
April 2003

BioTribology: Modeling of Wear in Total Knee Replacements
W.Gregory Sawyer
University of Illinois Colloquium
February 2003

The evolution of geometry for a wearing circular cam: analytical and computer simulation with comparison to experiment
D.J. Dickrell III, D.B Dooner, and W.G. Sawyer
ASME/STLE International Joint Tribology Conference
Cancun, Mexico, October 2002

Fractional Coverage Model for the Adsorption and Removal of Gas Species and Application to Superlow Friction Diamond-like Carbon
P. L. Frysz, W. G. Sawyer, A. Erdemir
ASME/STLE International Joint Tribology Conference
Cancun, Mexico, October 2002

Wear Modeling in Total Knee Replacements
W. Gregory Sawyer
Invited Talk - Gordon Research Conference - 2002

Development of a Multi-Directional Multi-Specimen Dynamic Loading Wear Apparatus
Aaron M Ison, Darren McGuire, and  W. Gregory Sawyer
STLE Annual Meeting May 2002
Solid Lubricants Session

Analytical Wear Modeling of a Simple Cam Mechanism with Experimental Comparison
D. J. Dickrell and W.G. Sawyer
STLE Annual Meeting May 2002
Solid Lubricants Session

Computational Modeling of Wear in Joint Replacements
M.A. Hamilton, W.G. Sawyer, Torkel Svanes, and S. A. Banks
STLE Annual Meeting May 2002
Solid Lubricants Session

Development of a High Contact Pressure Reciprocating Pin on Flat Tribometer
J. E. Action, W. G. Sawyer, Jeff Aiken
STLE Annual Meeting May 2002
Tribotesting

Friction and Wear Characteristics of Nanoparticle Filled Polymer Composites
K.D. Freudenberg, W.G. Sawyer, P. Bhimaraj, and L.S. Schadler
STLE Annual Meeting May 2002
Solid Lubricants Session

Computational Wear Prediction of Total Knee Replacements Using Patient Specific Kinematics
Matthew C. Sucec and W. Gregory Sawyer
STLE Annual Meeting May 2001
Solid Lubricants Session

Wear Predictions of a Simple-Cam Including the Coupled Evolution of Wear and Load
W. Gregory Sawyer
STLE Annual Meeting May 2001
Wear Session

The Coupled Evolution of Wear and Load in a Scotch Yoke Mechanism: Modeling and Experimentation
Kelvin I Diaz, Matthew A. Hamilton, and W. Gregory Sawyer
STLE Annual Meeting May 2001
Wear Session

A Fractional Coverage Model for Vapor Phase Lubrication in Reciprocating Sliding Contacts
W. Gregory Sawyer
STLE Annual Meeting May 2000
Solid Lubricants Session

Vapor Phase Lubrication in Combined Rolling and Sliding Contacts: Modeling and Experimentation
W. Gregory Sawyer and Thierry A. Blanchet
Joint ASME/STLE Meeting October 2000
Solid Lubricants Session