Abstract
The present work has studied the dry sliding behavior of Al2O3–nZrO2–Nb micro–nanobiocomposites against ultrahigh molecular weight polyethylene (UHMWPE) in air. The tests were carried out with a reciprocating wear tester with an applied load of 30N, a sliding speed of 0.06m/s and sliding distance up to 10km. Under the adopted testing conditions, the ceramic–metal composite against UHMWPE shows one and a half order of magnitude lower wear rate than the monolithic alumina; and friction coefficient as low as half of that for pure alumina–UHMWPE system. This behavior is related with: (a) the improvement in mechanical properties (toughness and strength) that will lead to the corresponding improvement in wear properties, and (b) the formation of a self-lubricating layer that will provide sufficient lubrication in order to considerably reduce the friction, as compared to monolithic alumina against UHMWPE combination.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
