Surface characteristics, biocompatibility, and mechanical properties of nickel-titanium plasma-implanted with nitrogen at different implantation voltages.

@article{Liu2007SurfaceCB,
  title={Surface characteristics, biocompatibility, and mechanical properties of nickel-titanium plasma-implanted with nitrogen at different implantation voltages.},
  author={Xinhong Liu and S. L. Wu and Yi Chan and Paul K. Chu and Chiyuen Chung and C L George Chu and Kelvin Wai Kwok Yeung and William Weijia Lu and Kenneth Man-Chee Cheung and Keith D. K. Luk},
  journal={Journal of biomedical materials research. Part A},
  year={2007},
  volume={82 2},
  pages={469-78}
}
NiTi shape memory alloy is one of the promising orthopedic materials due to the unique shape memory effect and superelasticity. However, the large amount of Ni in the alloy may cause allergic reactions and toxic effects thereby limiting its applications. In this work, the surface of NiTi alloy was modified by nitrogen plasma immersion ion implantation (N-PIII) at various voltages. The materials were characterized by X-ray photoelectron spectroscopy (XPS). The topography and roughness before and… CONTINUE READING

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