The effect of zinc dithiophosphates on the friction and wear of partially stabilized zirconia. Part I. Zinc DI-N-alkyldithiophosphates tribological properties
Journal Title: Tribologia - Year 2010, Vol 230, Issue 2
Abstract
Tribological properties of zinc di-n-alkyldithiophosphates (ZDTPs) of ionic-ZrO2, partially stabilised by Y2O3 (PSZ), were performed using a ball-disk tribometer, at 25°C. It was found that ZDTPs significantly reduce the friction and wear under boundary conditions. Increasing the sliding speed and load have a detrimental effect on friction and wear. The effectiveness of friction and wear reduction increases with the increasing hydrocarbon chain of the additive molecule and the concentration of additive solution. The wear surface was analysed using an optical microscope and the SEM/EDX technique. The data results of friction and wear are in good correlation with magnitude and molar differential enthalpy adsorption of ZDTPs on PSZ powder from n-decane solutions and with phosphorus concentration on a rubbing surface.<br/><br/>
Authors and Affiliations
Leszek Margielewski
Keywords
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