Park, Won-Woong Kim, Eun-Kyeom Jeon, Jun-Hong Choi, Jin-Young Moon, Sun-Woo Lim, Sang-Ho Han, Seung-Hee 2024-01-20T14:04:31Z 2024-01-20T14:04:31Z 2021-09-04 2012-08-01 0169-4332 https://pubs.kist.re.kr/handle/201004/128989 NbN thin film was deposited on the Co-Cr-Mo alloy by plasma immersion ion implantation and deposition (PIII&D) to reduce the volume wear rate of UHMWPE. In addition, nitrogen ions were implanted on the surface of the Co-Cr-Mo alloy prior to the NbN film deposition in order to increase the hardness of the substrate. XPS analysis revealed that nitrogen ions were implanted into the surface of the Co-Cr-Mo alloy, leading to the formation of CrN and Cr2N. The UHMWPE volume wear rate was measured using a pin-on-disk tribometer. The wear test result showed that the volume wear rate of UHMWPE against NbN-coated Co-Cr-Mo alloy declined by 20% as compared to that in the untreated Co-Cr-Mo alloy. In addition, the UHMWPE wear rate against the nitrogen-ion-implanted and NbN-coated Co-Cr-Mo alloy could be drastically reduced by up to 48%. It can be concluded that a combination of prior nitrogen ion implantation and NbN coating via PIII&D is a promising surface treatment tool for extending the lifetime of metal-on-polymer artificial joints. (C) 2012 Elsevier B.V. All rights reserved. English ELSEVIER MOLECULAR-WEIGHT POLYETHYLENE TRIBOLOGICAL CHARACTERIZATION COBALT-CHROMIUM COATINGS BEHAVIOR Wear of UHMWPE against nitrogen-ion-implanted and NbN-coated Co-Cr-Mo alloy formed by plasma immersion ion implantation and deposition for artificial joints Article 10.1016/j.apsusc.2012.05.026 1 APPLIED SURFACE SCIENCE, v.258, no.20, pp.8228 - 8233 APPLIED SURFACE SCIENCE 258 20 8228 8233 scie scopus 000305940700069 2-s2.0-84862561739 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article MOLECULAR-WEIGHT POLYETHYLENE TRIBOLOGICAL CHARACTERIZATION COBALT-CHROMIUM COATINGS BEHAVIOR Plasma immersion ion implantation and deposition (PIII&D) Artificial joints Total hip replacement Pin-on-disk wear test Niobium nitride (NbN) Nitrogen ion implantation