Figure 6 | Scientific Reports

Figure 6

From: Rapid selection of environmentally friendly layered alkaline-earth metal phosphates as solid lubricants using crystallographic data

Figure 6

Friction and wear performance of layered potassium magnesium and calcium phosphates as additives in coconut oil calcium-based grease. (a) PB values at different temperature (25, 75 and 120 °C). (b) WSD values under different loads (from 98 to 686 N). (c) Dynamic friction curves under maximum applied loads (K-LMP 686 N, K-LCP 588 N, MoS2 490 N, Base grease 490 N). Test conditions: four-ball test, PB: 1770 rpm, 10 s; WSD/COF: 75 °C, 1200 rpm, 3600 s.

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