PIIID-formed (Ti, O)/Ti, (Ti, N)/Ti and (Ti, O, N)/Ti coatings on NiTi shape memory alloy for medical applications

PLAZMA DALDIRMA İYON İMPLANTASYONU VE BİRİKTİRME (PIII&D) PROSESİ GERİLİMLERİNİN AZOT PLAZMASINDA ORTOPEDİK İMPLANT MALZEMESİ Ti6Al4V YÜZEYİNDE OLUŞTURULAN Ag KAPLAMALARININ MORFOLOJİLERİNE, FAZ OLUŞUMLARINA ve E-Coli. ADEZYONUNA ETKİLERİ

“…(a) 'da net şekilde görülmektedir. PIII&D işlemi ile çeşitli parametreler kullanılarak elde edilen numunelerin yüzeylerinde, Sun ve çalışma ekibinin [24] gerçekleştirdiği çalışmaya benzer şekilde, nano boyutlarda tanelerden kaplamalar PIII&D yöntemi ile Ti6Al4V yüzeyinde elde edilmiştir. Tc-E. coli tutunumu yönünden en iyi sonuçlar ise C2 (%0.320.17) ve C1 (%0.670.55) numaralı örneklerde elde edilmiştir.…”

Composite coatings for implants and tissue engineering scaffolds

“…6.1) on NiTi SMA recently (Sun et al, 2009b). The Ca : P ratio of the composite coating, as determined by EDX, was about 1.38, which is slightly higher than that of OCP (with a Ca : P ratio of 1.33) and much lower than that of HA (with a Ca : P ratio of 1.67).…”

Effects of N 2 /O 2 flow rate on the surface properties and biocompatibility of nano-structured TiO x N y thin films prepared by high vacuum magnetron sputtering

“…For this purpose, surface modification of NiTi alloys are carried out by different techniques such as sol-gel method, plasma immersion ion implantation, plasma spray, and plasma deposition. [9][10][11][12] The key advantage of plasma surface modification is its ability to improve only selective surface properties, whereas the bulk properties remain the same. [11] Several research groups have made great effort to enhance the bioactivity of NiTi alloy.…”

“…Liu et al [9] mentioned that the formation of TiO 2 layer on NiTi substrate, improved the corrosion and blood compatibility. Sun et al [10] concluded that (Ti, O, N)/Ti composite coating was best for medical applications because it improves the biocompatibility, wear resistance, and mechanical properties of NiTi alloy. More recently, Hossary et al [13] found that plasma nitriding formed the TiN layer, which not only enhanced the corrosion resistance, but also effectively prevented the Ni release from the NiTi surface.…”