Effect of silver-organic precursor on friction and wear

Abstract

Purpose – The purpose of this paper is to study the effect of silver (Ag) precursor on friction and wear. Design/methodology/approach – Thermogravimetric analysis of the oil with Ag precursor and X-ray diffraction of the decomposition product of the Ag complex were performed. The tribological behavior was evaluated on a UMT-3M Tribometer (CETR) using pure military-grade oil lubricant and the prepared lubricant at room temperature and at 300°C. Energy-dispersive spectroscopy of the chemical composition on the wear scar was performed. Findings – When there is 1 weight per cent Ag precursor in the lubricant, the coefficient friction reduces by about 8 per cent at room temperature and by about 14 per cent at 300°C, and the wear probability also decreases, from moderate wear to mild wear at 300°C. There were more productions which could form metal Ag boundary films possessing low shearing stress and excellent lubricity at 300°C. Originality/value – Ag precursors used as additives in a military-grade oil lubricant and excellent lubricity found at high temperature.