Silver-Organic Oil Additive for High-Temperature Applications

摘要: Modern lubricants face the task of providing lubrication over a wide range temperatures, and extreme engine temperatures can exceed thermal degradation limits many oils. Soft metal additives extend life oils at very high by solid to contacting surfaces. We report new silver–organic complex which contains content minimal supporting organic ligands. This silver pyrazole–pyridine is evaluated as friction-reducing anti-wear additive in oil testing thermally degrade base oil. Two sets ball-on-disk tests are performed: first constant temperature 200 °C second while increasing chamber from 180 330 °C. At 200 °C, wear considerably reduced compared with when silver-organic present 2.5–5.0 wt%. Furthermore, silver-based 20 wt% induces remarkable friction reduction during ramp test, so much, that tribological transition primary lubricant its degradation, lubricant, imperceptible.