Mechanochemistry as a key to understand the mechanisms of boundary lubrication, mechanolysis and gas evolution during friction

Hiratsuka Ken'ichi , Czesław Kajdas


Mechanical energy alters chemical reactions. Although the mechanisms of mechanochemical reactions are not understood well, they have been utilized for alloying, polishing, lubrication and so on. On the other hand, tribochemical reactions which involve the interactions between frictional materials and the environment accelerate the decomposition of solid and surrounding molecules. It results in the emission of small particles and gases, bringing problems to environment and health. Mechanochemical and tribochemical reactions are often studied in different fields and in different societies. Even if similar reactions from each field are named differently, the same physics and chemistry operate in both reactions. Therefore, this study aimed at better understanding of some tribochemical reactions from the mechanochemical point of view. The main mechanism is proposed to be the emission of electrons, which is enhanced by the energy input onto the surface and surrounding molecules due to the breakage of chemical bonds and chemisorption of environmental molecules.
Author Hiratsuka Ken'ichi
Hiratsuka Ken'ichi,,
, Czesław Kajdas (FCEMP)
Czesław Kajdas,,
- Faculty of Civil Engineering, Mechanics and Petrochemistry
Journal seriesProceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, ISSN 1350-6501
Issue year2013
Keywords in Englishmechanochemistry, tribochemistry, mechanolysis, boundary lubrication, gas evolution, electron emission, tribodegradation, triboreduction
Languageen angielski
Score (nominal)20
ScoreMinisterial score = 20.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2013 = 0.66 (2) - 2013=0.847 (5)
Citation count*5 (2015-03-28)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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