Microstructure, antibacterial properties and wear resistance of plasma Cu-Ni surface modified titanium

作者：Zhang, Xiangyu; Ma, Yong; Lin, Naiming; Huang, Xiaobo; Hang, Ruiqiang; Fan, Ailan; Tang, Bin^*

来源：Surface and Coatings Technology, 2013, 232: 515-520.

DOI：10.1016/j.surfcoat.2013.06.012

• Titanium
• Cu-Ni alloyed layer
• Antibacterial
• Wear resistance

A Cu-Ni alloyed layer on titanium was obtained by using a plasma surface alloying technique to improve antibacterial activity and wear resistance. The microstructure and phase constituents of Cu-Ni alloyed layer were characterized by using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The antibacterial properties and wear resistance of treated titanium were investigated. The results show that the Cu-Ni alloyed titanium exhibits high antimicrobial activity to Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) due to the formation of Cu-containing phase. Moreover, the Cu-Ni alloyed layer can greatly improve the hardness and wear resistance of pure titanium. It is expected that the Cu-Ni alloyed titanium combining excellent bactericidal ability with wear resistance might provide a durable antibacterial function for biomedical application.

• 出版日期2013-10
• 单位太原理工大学