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MEAM Seminar: “Tribosintering of Metal Oxide Nanocrystal Antiwear Additives: Growth, Wear, and Modeling”

July 16 at 10:15 AM - 11:15 AM

Machinery relies on lubrication to regulate the friction and wear at contacting interfaces. As new lubricants become less viscous to comply with environmental and cost-saving standards, the risk of surface-initiated machine failure grows. We show that metal oxide additives in low-viscosity lubricants will form protective coatings, or tribofilms, in situ at contacting interfaces. Compared to state-of-the-art surface coatings and anti-wear additives, metal oxide coatings have several practical benefits and environmental advantages, but their formation mechanism is not well-understood. We will first discuss the mechanistic and practical implications of the coatings’ cooperativity of with S- and P-based co-additives, then the interplay between the coatings’ growth on and their removal from contacting machinery. Finally, we will discuss data-driven and traditional modeling efforts to develop predictive models for these antiwear coatings.

Parker LaMascus

Ph.D. Candidate, Department of Mechanical Engineering & Applied Mechanics, University of Pennsylvania

Parker LaMascus is advised by Robert Carpick.


July 16
10:15 AM - 11:15 AM
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Room 337, Towne Building
220 South 33rd Street
Philadelphia, PA 19104 United States
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