EXPERIMENTAL AND NUMERICAL STUDY ON INFLUENCE OF ELECTRO-VISCOSITY OF ELECTRIC DOUBLE LAYER IN THIN FILM LUBRICATION

Abstract

Abstract: Theoretical and experimental researches show that electro-viscosity by electric double layer (EDL) apparently influences on thin film lubrication (TFL). In order to consider the influence of EDL, some tests with a composite sliding block are carried out by the way that external electric field is used to reconstruct EDL with water used as lubricant. Results showed that EDL has apparent effect on friction coefficient. To ensure the results, further tests are done where aqueous KCl solution is used as lubricant. The influence of electro-viscosity on friction coefficient is studied by changing concentration of KCl. Results showed that EDL has apparent effect on friction coefficient in TFL, 30% in increase. Finally, numerical analysis is also carried out to show the effect of EDL electro-viscosity on friction coefficient in TFL.

Key words: Electric double layer, Electro-viscosity, External electric field, Friction coefficient

CLC Number:

TH117

Bai Shaoxian;Huang Ping. EXPERIMENTAL AND NUMERICAL STUDY ON INFLUENCE OF ELECTRO-VISCOSITY OF ELECTRIC DOUBLE LAYER IN THIN FILM LUBRICATION[J]. , 2004, 40(5): 34-38.

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EXPERIMENTAL AND NUMERICAL STUDY ON INFLUENCE OF ELECTRO-VISCOSITY OF ELECTRIC DOUBLE LAYER IN THIN FILM LUBRICATION

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