Thermal characterization of Ag and Ag plus N ion implanted ultra-high molecular weight polyethylene (UHMWPE)
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Most of total hip joints are composed of ultra-high molecular weight polyethylene (UHMWPE). However, as ultra-high molecular weight polyethylene is too stable in a body, wear debris may accumulate and cause biological response such as bone absorption and loosening of prosthesis. In this study, ultra-high molecular weight polyethylene samples were Ag and Ag + N hybrid ion implanted by using MEVVA ion implantation technique to improve its surface properties. Samples were implanted with a fluence of 10(17) ion/cm(2) and extraction voltage of 30 kV. Implanted and unimplanted samples were investigated by thermo-gravimetry analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), optical microscopy (OM) and contact Angle measurement. Thermal characterization results showed that the ion bombardment induced an increase in the % crystallinity, onset and termination degradation temperatures of UHMWPE. (c) 2007 Elsevier B.V. All rights reserved.
Açıklama
19th International Conference on Application of Accelerators in Research and Industry -- AUG 20-25, 2006 -- Ft Worth, TX
Anahtar Kelimeler
UHMWPE, Ag, Ag plus N, ion implantation, DSC, TGA, SEM
Kaynak
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
261
Sayı
01.Feb
