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Figure 1

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

Figure 1

Friction and wear performance of various typical layered lubricant materials as additives in PAO8 lithium-based grease. (a) PB values at different temperatures (25, 75 and 120 °C). (b) WSD values under different loads (from 98 to 686 N). (c) Dynamic friction curves under standard load (392 N) and maximum applied loads of β-LDS and α-ZrP (686 N). Test conditions: four-ball test, PB: 1770 rpm, 10 s; WSD/COF: 1200 rpm, 3600 s, 75 °C.

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