Dr. Juliette Cayer-Barrioz, France

For her fundamental interfacial studies of fluid lubrication mechanisms across all regimes, from boundary and elastohydrodynamic to hydrodynamic, at length scales from nanometers to micrometers under both steady-state and transient conditions over a wide range of temperature, Dr. Juliette Cayer-Barrioz, CNRS Director of Research of the Laboratory of Tribology and System Dynamics (LTDS), Ecole centrale de Lyon, France is awarded the 2025 Peter Jost Award in Tribology.