Influence of Processing Conditions on the Wear Resistance of Ultra-High Molecular Weight Polyethylene pp. 195-210
Authors: (Lorenz M. Brunner, Theo A. Tervoort and Paul Smith)
Abstract: This study is concerned with the detailed relation between processing conditions and the three-body abrasive wear resistance of ultra-high molecular weight polyethylene (UHMWPE). For this purpose, commercial-grade UHMWPE powder was processed according to a variety of different procedures resulting in samples of vastly different morphologies, ranging from fully homogeneous to samples with excessive amounts of grain boundaries. Subsequently, the wear coefficients of the objects produced were determined employing a micro-scale abrasive wear apparatus. It was shown that morphology only has a moderate influence and that the primary requirement for achieving high abrasion resistance is the complete absence of oxygen during processing of UHMWPE reactor powder.