Lehigh University
The Tribology Laboratory at Lehigh University
Publications
Presentations
Conference presentations were presented by the first author.Presentations are in flash format. Flash plug-in required. Click on a title to open a presentation. Use spacebar or click arrows to navigate slides. Many slides will have movies on them (it may not be obvious there is a movie on a slide). To play and advance through movies, press enter.
Invited Conference Presentations
- “The Tribology of Ultra Low Wear PTFE Composites”,
B. A. Krick and W. G. Sawyer, American Chemical Society: “Fluoropolymer 2012”, Las Vegas, NV, 2012
Conference Presentations
- “Space Tribology: Results from the Low Earth Orbit Space Tribometers”,
B. A. Krick and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Detroit, MI, 2013 - “Directionality of Wear in Simple Ionic Solids”,
K. Harris, B. A. Krick, K. R. Marchman and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Detroit, MI, 2013 - “Exploring the Practical Limits of Wear Within Polymer Composite Systems”,
A. A. Pitenis, B. A. Krick, J. J. Ewin, E McCumiskey and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Detroit, MI, 2013 - “In Situ Thermal Measurements of Sliding Contacts”,
K. G. Rowe, A. Bennett, B. A. Krick, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Detroit, MI, 2013 - “Slippery When Wet: Gradient Surface Functionalization of Hydrogels for Lubricity Control”,
B. A. Krick, A. A. Pitenis, A. C. Dunn and W. G. Sawyer, Society for Biomaterials Annual Meeting, Boston, MA, 2013 - “Crystallographic Wear Patterns in Ionic Solids”,
B. A. Krick, K. Harris, K. R. Marchman, S. B. Sinnott and W. G. Sawyer, American Vacuum Society 59th International Meeting, Tampa, FL, 2012 - “Ultra-Low Wear Nanocomposites: How Low Can We Go?”,
A. A. Pitenis, B. A. Krick, J. J. Ewin and W. G. Sawyer, American Vacuum Society 59th International Meeting, Tampa, FL, 2012 - “First Contact: SPR and SERS Studies of the Initial Transfer Behavior of PTFE”,
K. Harris, B. A. Krick, D. W. Hahn and W. G. Sawyer, American Vacuum Society 59th International Meeting, Tampa, FL, 2012 - “Back from Space: Over 325 million miles of tribology”,
W. G. Sawyer and B. A. Krick, Opening talk at Gordon Conference on Tribology, Waterville, ME, 2012 - “Exploring the Tribochemical Mechanisms Responsible for the Ultra-low Wear Behavior of PTFE Composites”,
B. A. Krick, J. J. Ewin, G. S. Blackman, C. P. Junk and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, St. Louis, MO, 2012 - “Exploring Contact Mechanics of Elastomers with an In Situ Optical Microtribometer”,
B. A. Krick, B. N. J. Persson and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, St. Louis, MO, 2012 - “Examining and Predicting Wear in Ionic Solids with In Situ Scanning White Light Interferometry”,
K. R. Marchman, B. A. Krick, K. Harris and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, St. Louis, MO, 2012 - “Contact Mechanics and Thermal Tribology of Elastomers”,
K. G. Rowe, A. Bennett, B. A. Krick, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, St. Louis, MO, 2012 - “In situ Methods in Tribology and Contact Mechanics”,
B. A. Krick, and W. G. Sawyer, Materials Research Society Spring Meeting, San Francisco, CA, 2012 - “Fundamental Studies of Wear: Explaining Macroscopic Events with Fundamental Interactions”,
B. A. Krick and W. G. Sawyer, Advances in Lubrication: Linking Molecular, Meso, and Machine Scales, Puntarenas, Costa Rica, 2012 - “Going No Wear!”,
W. G. Sawyer, B. A. Krick, K. R. Marchman, K. Harris, S. Sinnot, S. Phillpot, and S. S. Perry, Plenary talk presented by W.G Sawyer at the European Symposium on Friction, Wear, and Wear Protection, Karlsruhe, Germany, 2011 Link - “Space Tribology”,
W.G. Sawyer and B.A. Krick, Keynote presented by W. G. Sawyer at Wear of Materials Conference, Philadelphia, PA, 2011 Link - “In-Situ Microtribology of Soft Materials”,
J. R. Vail, B. A. Krick, B. N. J. Persson and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Atlanta, GA, 2011 Link - “Understanding Ultra-low Wear Polytetrafluoroethylene Nanocomposites”,
B. A. Krick, G. S. Blackman, C. P. Junk, J. J. Ewin and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Atlanta, GA, 2011 Link - “Space Tribology”,
W.G. Sawyer and B.A. Krick, International Conference on Metallurgical Coatings & Thin Films, San Diego, CA, 2011 - “Space Tribology”,
W.G. Sawyer and B.A. Krick, Materials Sciences and Technology Conference, Houston, TX, 2010 Link - “Space Tribology: The Final Frontier”,
W. G. Sawyer and B. A. Krick, Closing talk at Gordon Conference on Tribology, Waterville, ME, 2010 - “Reactive Nanofillers in Polytetrafluoroethylene (PTFE)”,
B. A. Krick, J. R. Vail, K .R. Marchman, D. L. Burris, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Las Vegas, NV, 2010 Link - “High Temperature Vapor Phase Lubrication Using Carbonaceous Gases”,
N. Argibay, J. H Keith, B. A. Krick, D. W. Hahn, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Las Vegas, NV, 2010 Link - “Gold: In the Beginning ...”,
J. H. Keith, I. J. Hill, N. Argibay, D. McIntyre, G. R. Bourne, R. S. Colbert, B. A. Krick, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Las Vegas, NV, 2010 Link - “Polytetrafluoroethylene Fiber Reinforced Polyetheretherketone Composites”,
J. R. Vail, B. A. Krick, S. B. Sinnott, and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Orlando, FL, 2009 Link - “Tribological Study of Materials in Space”,
B. A. Krick, D. L. Burris, J. Jones and W. G. Sawyer, Society of Tribologists and Lubrication Engineers Annual Meeting, Cleveland, OH, 2008 Link - “A Low Earth Orbit Space Tribometer”,
B. A. Krick, J. G. Jones, A. A. Voevodin, D. L. Burris, and W. G. Sawyer, International Conference on Metallurgical Coatings and Thin Films, San Diego, CA, 2009 Link
News
Undergraduate Research Positions Available
Oportunity for hands on research experience.
Now Accepting Applications.
In the Tribology Laboratory, undergraduates will do experimental research focused on interfacial interactions of condensed matter. This includes studying the fundamental origins of friction, wear, surface deformation and adhesion on complex surfaces and materials ranging from cells to nanocomposites in environments ranging space to kilometers under water.
Active research includes analysis of materials that recently returned from the international space station, evaluating wear of dinosaur dental fossils, developing and patenting ultra-low wear polymer nanocomposites, studying and designing biocompatible and bio-inspired polymeric and hydrogel materials, and collaborating internationally on the physics of soft matter interactions. This research in tribology is at the intersection of mechanical engineering, materials science and surface physics.
Nanomechanical and Tribological Properties on Hadrosaurid Dinosaurs
Prof. Greg Sawyer, Greg Erickson and Brandon Krick measured nanomechanical and tribological properties on hadrosaurid (duck-billed dinosaur) dental fossils from the American Museum of Natural History. Using custom instruments, we measured tissue hardness and wear rates that were preserved in the 65 million year old tooth. These properties are preserved in fossilized teeth because apatite mineral content is the major determinant of dental tissue hardness. Measured tissue wear rates were used to simulate the formation of hadrosaurid tooth chewing surfaces using a 3-D wear simulation. The simulation results in a surface profile nearly identical to a naturally worn hadrosaurid dental battery. The model revealed how each tissue (of differing wear rates) contributed to the formation of sophisticated slicing and grinding features in these reptiles tens of millions of years before mammals evolved analogous chewing capacity. This capacity to measure wear-relevant properties preserved in fossils provides a new route to study biomechanics throughout evolution. See Journal papers:
Science, October 5, 2012, pp.98-101.
Experiments back from the International Space Station
Space Tribometers and Samples back for analysis
Materials on the International Space Station Experiments (MISSE) Space Tribometers were the first ever active tribometers directly exposed to the Low Earth Orbit Environment
The Tribology Laboratory at Lehigh University is under construction
The lab as of May 2013
The lab as of July, 3rd 2013
