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Although Ti-Cu alloys have been shown to possess good antibacterial properties, they are still biologically inert. In this study, sandblasting and acid etching combined with anodic oxidation were applied to roughen the surface as well as to form a TiO2/CuO/Cu2O composite film, which would benefit both the antibacterial properties and the biocompati...
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... open circuit potential (OCP) and Tafel curves of the Ti-Cu, Ti-Cu-S and Ti-Cu-SA samples are shown in Figure 4a,b, and the electrochemical data are listed in Table 1. The OCP curves of the three samples all reached a relatively stable state at 3600s. ...Citations
... In Figure 9b, the presence of Ti-2Cu-9Mo compound was established, which is also a strengthening factor. Previous studies have mentioned the Ti-2Cu-9Mo phase, which can enhance the antibacterial ability of the alloy [47][48][49][50]. Figure 8 presents a comparison of the tensile strength and hardness results at ambient temperature among the examined alloys. The simulation results revealed the presence of intermetallic compounds in the alloys, which can be considered as one of the reasons for the increase in strength. ...
... In Figure 9b, the presence of Ti-2Cu-9Mo compound was established, which is also a strengthening factor. Previous studies have mentioned the Ti-2Cu-9Mo phase, which can enhance the antibacterial ability of the alloy [47][48][49][50]. ...
The use of titanium and titanium-based alloys in the human body due to their resistance to corrosion, implant ology and dentistry has led to significant progress in promoting new technologies. Regarding their excellent mechanical, physical and biological performance, new titanium alloys with non-toxic elements and long-term performance in the human body are described today. The main compositions of Ti-based alloys and properties comparable to existing classical alloys (C.P. TI, Ti-6Al-4V, Co-Cr-Mo, etc.) are used for medical applications. The addition of non-toxic elements such as Mo, Cu, Si, Zr and Mn also provides benefits, such as reducing the modulus of elasticity, increasing corrosion resistance, and improving biocompatibility. In the present study, when choosing Ti-9Mo alloy, aluminum and copper (Cu) elements were added to it. These two alloys were chosen because one element is considered a favorable element for the body (copper) and the other element is harmful to the body (aluminum). By adding the copper alloy element to the Ti-9Mo alloy, the elastic modulus decreases to a minimum value of 97 GPa, and the aluminum alloy element increases the elastic modulus up to 118 GPa. Due to their similar properties, Ti-Mo-Cu alloys are found to be a good optional alloy to use.
... Nevertheless, Ti64 alloy shows serious drawbacks such as poor wear resistance and low antibacterial activity, which may result in the early degradation of long-term prostheses [3]. To overcome these drawbacks, the addition of antibacterial metals such as silver and copper has been proposed [4][5][6][7][8][9][10][11][12]. It has been reported in [13,14] that a high level of antibacterial activity is reached with the addition of less than 5 wt% of Cu or Ag. ...
Ti6Al4V (Ti64) alloy is the most used metal material for bone implants because of its good biocompatibility and adapted mechanical properties. Nevertheless, it shows low antibacterial activity, which may favor its failure. Addition of antibacterial elements such as copper should avoid this drawback. This work studies the addition of Cu into a Ti64 matrix resulting in Ti64/xCu composites. Powder mixtures of Ti64/xCu were compacted in a die and then sintered at 1100 °C. Sintering kinetics indicate that densification is achieved by pore filling due to eutectic liquid formed by the reaction of Ti and Cu. The microstructure of the sintered samples is composed mainly of α-Ti and Ti2Cu phases, but TixCuy intermetallics were also found. Microhardness is increased by the addition of Cu due to densification and the formation of harder phases such as Ti2Cu. However, the stiffness and compression strength are barely the same for all composites. The corrosion resistance is significantly improved by the addition of Cu. Finally, the material with 15 wt% of copper showed the best compromise.
