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2016 STLE Tribology Frontiers Conference

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2016 STLE Tribology Frontiers Conference 2016 STLE Tribology Frontiers Conference Tribology: The Interface of Physics, Chemistry, Materials and Mechanical Science and Engineering November 13-15, 2016 Historic Drake Hotel on Chicago’s “Magnificent Mile” Chicago, Illinois 2016 Preliminary Technical Program as of 8/2/16 Preliminary TABLE OF CONTENTS Program-at-a-Glance ............................................................................................3 Program with Abstracts Sunday ......................................................................................................4 Monday ......................................................................................................17 Tuesday .....................................................................................................47 Author Index .........................................................................................................64 2016 STLE Tribology Frontiers November 13-15, 2016 Historic Drake Hotel Chicago, Illinois (USA) Preliminary Program-at-a-Glance As of 8/2/16 – Subject to Change Sunday, November 13, 2016 Berkeley – 1:20 pm – 2:00 pm – Grand Ballroom AFM and TEM Studies of Friction and Wear in Pt- Welcome and Introductions – 1:00 pm – 1:20 pm Graphene and Pt-SiO2 Systems Invited Talk – J. Edward Colgate. PhD, Technical Sessions – 2:00 – 6:00 pm Northwestern University – 1:20 pm – 2:00 pm – 3A – Materials Tribology III – Walton North Grand Ballroom 3B – Surfaces & Interfaces III - Walton South Surface Haptics: How Friction Modulation Lets Us 3C – Machine Elements & Systems II - Georgian Touch Virtual Worlds Room 3D – Lubricants III- Venetian Room Networking Break – 2:00 pm – 2:40 pm – Grand 3E – Fluid Lubrication II: Rheology & EHL - Astor Ballroom Room 3F – Tribochemistry II – Superior Room Technical Sessions – 2:40 – 6:00 pm 1A – Beyond the Cutting Edge – Highlights from Networking Reception – 6:30 pm – 8:00 pm Tribology Letters – Walton South 1B – Surfaces & Interfaces I – Walton North (Monday Networking Break – Exhibits & Posters) 1C – Materials Tribology I – Georgian Room – 3:00 pm – 3:40 pm 1D – Lubricants I – Venetian Room 1E – Biotribology – Astor Room Tuesday, November 15, 2016 Student Career Mentoring Program – 6:00 pm – Invited Talk – Donald Hillebrand, PhD, Argonne 7:00 pm National Laboratory – 9:00 am – 9:40 am Kenneth Pelczarski, Pelichem Associates Topic TBD Effective Interviewing Networking Break (Exhibits & Posters) – 9:40 am – Student Networking Event – 7:30 pm – 9:00 pm – 10:20 am – Grand Ballroom Location TBD Technical Sessions - 10:20 am - 12 Noon 4A – Materials Tribology IV - Walton South Monday, November 14, 2016 4B – Surfaces & Interfaces IV - Walton North 4C – Machine Elements & Systems III - Georgian Invited Talk – Professor Michael Moseler, Room Fraunhofer Institute of Mechanics and Materials – 4D – Energy/Environment/Manufacturing I - Venetian 9:00 am – 9:40 am – Grand Ballroom Room Tribo-Mechano-Chemistry: Lessons From Atomic 4E – Fluid Lubrication II: Textured Lubricated Scale Modeling Contacts – Astor Room Networking Break (Exhibits & Posters) – 9:40 am – Lunch on Your Own – 12:00 noon – 1:20 pm 10:20 am – Grand Ballroom Technical Sessions – 1:20 – 6:00 pm Technical Sessions – 10:20 am – 12:00 noon 5A – Materials Tribology V - Walton South 2A – Materials Tribology II – Walton South 5B – Surfaces & Interfaces V - Walton North 2B – Surfaces & Interfaces II – Walton North 5D – Energy/Environment/Manufacturing - Venetian 2C –Machine Elements & Systems I – Georgian Room Room 5E - Fluid Lubrication IV - Astor Room 2D – Lubricants II – Venetian Room 2E – Fluid Lubricants I: Squeeze film, Cavitation & (Tuesday Networking – Exhibits & Posters) – 3:00 Gaseous Lubrication – Astor Room pm – 3:40 pm 2F – Tribochemistry I – Superior Room Lunch on Your Own – 12:00 noon – 1:20 pm Invited Talk: Miquel Salmeron, Lawrence Berkeley National Laboratory & University of California, 3 Sunday, November 13, 2016 K1 Grand Ballroom Keynote Session I 1 - 1:20 pm - Welcome & Introductions 1:20 - 2 pm Surface Haptics: How Friction Modulation lets us Touch Virtual Worlds J. Edward Colgate, Northwestern University, Evanston, IL Imagine reaching into a handbag for a key fob, finding it amidst clutter, grasping it and pressing “unlock”, all without looking. That is an example of haptic perception. Now imagine extracting your cellphone, unlocking it, and opening an app, also without looking. Not as easy! In this talk, I’ll introduce “surface haptics”, which aims to give that cellphone controllable tactile properties such as buttons and sliders you can feel. How can a finger on a flat piece of glass feel a shape or texture? We approach this problem by controlling the frictional forces on the fingertip, modulating them in accordance with the finger’s movement. I’ll describe two friction modulation techniques – transverse ultrasonic vibrations and electrostatic fields; explain how friction modulation can be combined with lateral vibrations to create propulsive forces; and illustrate various ways in which lateral forces may be used to create the illusion of texture, events, and even 3D shape. BK1 Grand Ballroom 2 – 2:30 pm - Break #1 1A Walton South Beyond the Cutting Edge: Highlights from Tribology Letters I Session Chair: W. Tysoe, Chemistry and Biochemistry, UW-Milwaukee, Milwaukee, WI 2:40 - 3:20 pm Mechanisms Behind the Environmental Dependence of the Tribological Properties of Amorphous Carbon Coatings Robert Carpick, University of Pennsylvania, Philadelphia, PA, Medard Komlavi Dzidula Koshigan, Ecole Centrale de Lyon, Ecully cedex, France, Filippo Mangolini, University of Leeds, Leeds, United Kingdom, John Brandon McClimon, University of Pennsylvania, Philadelphia, PA, B. Vacher, Sandrine Bec, Julien Fontaine, Ecole Centrale de Lyon, Ecully cedex, France Amorphous carbon films are used as solid lubricants in a range of applications. However, one limitation is their environmental sensitivity. Silicon oxide-doped amorphous hydrogenated carbon films (a-C:H:Si:O) exhibit increased stability in extreme environments relative to amorphous hydrogenated carbons (a–C:H). We aim to develop fundamental understanding of the environmental impact on the tribology of a– C:H:Si:O. Upon sliding a–C:H:Si:O film against steel, two friction regimes occur: high friction in high vacuum or low pressures of oxygen or hydrogen gas, and a low friction regime at higher gas pressures (oxygen pressure >10 mbar, or hydrogen >50 mbar). Scanning electron microscopy revealed that the tribological behavior of a–C:H:Si:O is governed by environmentally-dependent adhesive junctions 4 behavior at the sliding interface. At low gas pressures, material transfer from the steel pin to the a– C:H:Si:O flat occurs. At higher gas pressures, a tribofilm forms on the steel countersurface. Raman and near edge X-ray absorption spectroscopy demonstrate that when sliding in the higher gas pressure (low friction) regime, a surface layer with an elevated fraction of sp2-bonded carbon atoms forms. These changes indicate that these gases favor the release of the adhesive junctions by dissociatively reacting with the mechanically-stressed sp2 carbon-rich surface layer. We will discuss the impact of these results in considering the design and function of other solid lubricant coatings. 3:20 - 4 pm Tribology Influences Rheology Influences Tribology: Microscopic Mechanism for Shear- thickening of Non-Brownian Suspensions Juliette Cayer-Barrioz, LTDS-CNRS UMR5513, Scully, France A simple model, supported by rheology and friction measurements as well as contact-dynamics simulation is proposed to link the transition from continuous to discontinuous shear thickening in dense granular pastes to distinct lubrication regimes in the particle contacts, is proposed. We identify a local Sommerfeld number that determines the transition from Newtonian to shear-thickening flows, and then show that the suspension’s volume fraction and the boundary lubrication friction coefficient control the nature of the shear-thickening transition, both in experiments and simulations. 4 - 4:40 pm Driving Mechanochemical Wear on Graphene Using Local Stress and Heat Jonathan Felts, Shivaranjan Raghuraman, Texas A&M University, College Station, TX Here we investigate the chemical dynamics of local graphene oxide reduction through the application of local temperature and stress using a heated atomic force microscope (AFM) tip. Specifically, a silicon AFM cantilever with an embedded Joule heater applies both local stress and heat to chemically functionalized graphene surfaces during tip sliding. The friction of the graphene sheet depends linearly on chemical group concentration, so monitoring friction force provides an in situ measure of chemical functionality on the surface over time. We demonstrate bond cleavage of oxygen, fluorine, and hydrogen from graphene using force alone. We then investigate both local temperature and force during tip sliding on graphene oxide. Monitoring friction over time for tip temperatures between 310 – 355 C and a load of 40 nN provides the kinetics of the reduction process, with an activation energy for bond scission of 0.7 ± 0.3 eV. Measurement noise contributed significantly to error and precluded determination of reaction order. In an effort to reduce measurement time and error, we introduce a new technique which measures friction during a linear temperature ramp between 50 - 450 C, providing an activation energy 0.62 ± 0.07 and a reaction order n ~ 1. It was further shown that applied force non-linearly reduces the
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