Wimmer, Markus A.Markus A.WimmerNgai, ValentinaValentinaNgaiKunze, JoachimJoachimKunze2024-08-272024-08-272007Proceedings of the Materials Division, The ASME Non-Destructive Evaluation Division and The ASME Pressure Vessels and Piping Division, 2006. - Seite 405-4060-7918-4773-X978-0-7918-4773-2https://hdl.handle.net/11420/48872Current protocols employed to measure wear of ultra-high molecular weight polyethylene (UHMWPE) utilize gravimetric and/or topographic measurement techniques. However, these methods may be subject to error due to creeping and fluid absorption capabilities of polyethylene. A novel process designed to avoid these errors was developed using Europium (Eu) as a tracer material to quantify polyethylene wear. Eu is a rare earth element that does not naturally occur in the human body and can be quantified using ICP-MS. By combining a solution of Eu - stearate with nascent UHMWPE powder, 9.5 mm diameter pins were molded and subjected to pin-on-disk testing. Samples of the testing lubricant were obtained at regulated intervals. These samples were analyzed for Eu quantification, which were then compared with the gravimetric pin measurements. Copyright © 2006 by ASME.enEuropiumMarkerPolyethyleneTracer materialWearNatural Sciences and Mathematics::540: ChemistryConference Paper10.1115/IMECE2006-15376Conference Paper