Thermal characterization of Ag and Ag + N ion implanted ultra-high molecular weight polyethylene (UHMWPE)
✍ Scribed by E. Sokullu Urkac; A. Oztarhan; F. Tihminlioglu; N. Kaya; D. Ila; C. Muntele; S. Budak; E. Oks; A. Nikolaev; A. Ezdesir; Z. Tek
- Book ID
- 103862259
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 474 KB
- Volume
- 261
- Category
- Article
- ISSN
- 0168-583X
No coin nor oath required. For personal study only.
✦ Synopsis
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.