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Time-Lapse Nanoscopy of Friction in the Non-Amontons and Non-Coulomb Regime
Originally discovered by Leonard da Vinci in the 15th century, the force of friction is directly proportional to the applied load (known as Amontons’ first law of friction).... -
The Nanostructured Origin of Deformation Twinning
We have revealed the fundamental embryonic structure of deformation twins using in situ mechanical testing of magnesium single crystals in a transmission electron microscope....