Surface treatments on CoCrMo to limit the wear and tear of UHMWPE in orthopaedic prostheses
The potential to improve the wear behaviour of the CoCrMo/UHMWPE (Ultra High Molecular Weight Polyethylene) joint system by surface modification of the CoCrMo was studied. The four surface treatments were: hand polishing, industrial polishing using vibrator finishing machines, CoCrMo deposition by magnetron sputtering PVD, and ZrO2 deposition by plasma assisted CVD. Wear testing was performed under un-directional conditions. The UHMWPE wear behaviour against the industrially polished alloy was best. Whereas the observed surface morphologies indicate the PVD deposition of CoCrMo to have merit for artificial joint applications.
Bibliographic Reference: An article published in: La Metallurgia Italiana, Vol.9 (2001), pp.35-42
Record Number: 200214217 / Last updated on: 2002-01-10
Original language: it
Available languages: it