A new concept of the mechanism of tribocatalytic reactions induced by mechanical forces
PBN-AR
Instytucja
Wydział Mechatroniki i Budowy Maszyn (Politechnika Świętokrzyska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Tribology International (35pkt w roku publikacji)
ISSN
0301-679X
EISSN
Wydawca
DOI
URL
Rok publikacji
2017
Numer zeszytu
Strony od-do
144-151
Numer tomu
107
Link do pełnego tekstu
Identyfikator DOI
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Autorzy
Słowa kluczowe
en
Triboreactions
Energy distribution
Boundary lubrication
Streszczenia
Język
en
Treść
The aim of this paper is to present a new approach to the mechanism of tribocatalytic reactions induced by mechanical forces. The new concept is based on the authors ’ previous research, which reveals that there exists a relationship between the modi fi ed coe ffi cient of reagent reactivity α i , the ratio of mechanical forces acting on a tribological system and a change in the internal energy of a lubricant (including a thin boundary layer). α i =(L – L 0 )/ A exp[-E a /(RT+ ε )] [(e 0 ) cos (k 2 L +k 3 )] t and 1/ A exp[-E a /(RT+ ε )] [(e 0 ) cos (k 2 L +k 3 )] t = C The paper has been divided into two parts. Part One provides a theoretical analysis of the distribution of energy between a solid surface and the molecules of a lubricant during a tribological process. This part concludes with the formulation of three hypotheses: fi rst, that the tribocatalyst transforms mechanical energy into a fl ux of electrons and/or photons, which provide additional amounts of energy to the molecules of the reagents, secondly, that the function C describes a wave of energy understood as a wave-like change in the internal energy of a tribological system caused by an increase in the applied load and, thirdly, that a chemical reaction can be initiated when i) the molecules of the reagent are supplied with energy equal to the activation energy E a and ii) the energy is supplied by a su ffi ciently high fl ux. Part Two discusses the empirical data that initially con fi rm the above hypotheses. The evidence combines i) the experimental results concerning the emission of electrons during friction with ii) the test results obtained for a number of lubricating oils using the Timken apparatus and method.
Cechy publikacji
peer-reviewed
Inne
System-identifier
57180
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