Improved wear resistance in alumina-PTFE nanocomposites with irregular shaped nanoparticles

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Transfer film evolution and its role in promoting ultra-low wear of a PTFE nanocomposite (2013, methodology): “1; the tribometer is nominally identical to those reported in previous studies [15,37].”
Environmental dependence of ultra-low wear behavior of polytetrafluoroethylene (PTFE) and alumina composites suggests tribochemical mechanisms (2012, methodology): “Fillers of all shapes and sizes have reduced the wear rates of PTFE by as little as a few percent to up to five orders of magnitude [7–23].”
Ultralow Wear PTFE and Alumina Composites: It is All About Tribochemistry (2015, methodology): “8–10], running films on the surface of the countersurface [8, 11], polymer morphology [2, 4, 13, 14], filler phase, filler size and shape [1, 3, 10, 14], composite dispersion [4], filler reinforcement mechanisms [11, 14], PTFE fibrillation [13, 14], environmental chemistry [5, 7], and countersurface”