Changes to near-surface region of PTFE during dry sliding against steel
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PTFE specimens were slid against an EN24 disc. The unworn and worn surfaces as well as the wear debris were examined by X-ray diffraction. Sliding was found to introduce (i) shrinkage of the unit cell, (ii) enlargement of crystallites and (iii) residual stresses in the slid PTFE surface. No conformational changes in the 157 helix could be observed due to sliding. The wear debris was found to be 1 μm thick warped laminates.
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- Changes to near-surface region of PTFE during dry sliding against steel
Journal of Materials Science
Volume 23, Issue 5 , pp 1877-1885
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