Tribochemistry
Tribochemistry is a subfield of tribology that studies chemical reactions occurring at interfaces under mechanical action, such as sliding, rubbing, or impact in the presence of contact stresses. It examines how the energy dissipated during friction can drive bond breaking and formation, leading to chemical transformations that influence friction, wear, and material performance. The concept encompasses mechanochemistry, where mechanical energy lowers reaction barriers and enables reactions that may not occur thermally.
Chemical changes at contacting surfaces can produce tribofilms—thin surface layers formed in situ from lubricants, additives,
Methods to study tribochemistry combine tribology experiments with surface characterization and modeling. Experimental approaches include pin-on-disk
Applications span lubricant formulation, brake systems, and materials design, where understanding tribochemical processes helps optimize wear