Abstract
The wear reducing actions of bronze, graphic powder and discontinuous glass fiber within a PTFE matrix have been demonstrated in oscillatory contact with stainless steel, at two different amplitudes, over a range of speeds. The secondary effects on the friction of the PTFE have also been investigated. The effects of oscillation amplitude on frictional surface morphology have been observed for these composites. The friction and wear of the unfilled PTFE matrix were both found to increase as speed increased, with wear going through a transition from a low- to high-rate regime. The speed at which this transition occurs increases with decreasing oscillatory amplitude.
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