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Abstrakty
NiTi alloys are frequently used in medical applications as a material for implants. The high risk of toxicity, caused by diffusion of nickel ions to the human body, requires developing a technology for deposition of a protective layer. Due to the unique physical and chemical properties the carbon-based layers are one of the possibilities for a surface protection. The carbon layer was deposited on Ni(50.6at%)Ti shape memory alloy using the RFPECVD process. The layers were studied using a wide range of methods. The structure was investigated using a high resolution electron microscope, greasing incident X-ray diffraction and reflectometry. The Auger spectrometer was applied for chemical analyses. Results reveal that the structure of carbon layer consists of nanocrystaline diamond particles in amorphous and/or nano-graphitic matrix. Basing on the Auger spectroscopy it was stated that the layers posses DLC qualities. The layers, deposited in this process, have a good quality and high corrosion resistance.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
57--62
Opis fizyczny
Bibliogr. 7 poz., rys., tab.
Twórcy
autor
autor
autor
autor
autor
autor
- University of Silesia, Institute of Materials Science, Katowice, Poland
Bibliografia
- 1. Kapanen A., Ilvesaro J., Denilov A., Rychanen J., Lchenkari P., Tukkanen J.: Behaviour of nitinol in osteoblast-like ROS-17 cell cultures, Biomaterials 23 (2002), pp.645-650.
- 2. Fyta M.G., Mathioudakis C.. Kopidakis G., Kelires P.C.: Structure, stability, and strcss properties of amorphous and nanostructured carbon films, Thin Solid Films 473 (2005) pp. 56-62.
- 3. Yanga W. J., Sekino T., Shim K. B., Niihara K., Auh K. H.: Deposition and microstructure of Ti-containing diamond-like, carbon nanocomposite films, Thin Solid Films 473 (2005), pp. 252-258.
- 4. LaVana D. A., Paderab R. F., Friedmannd T. A., Sullivand J. P., Langere R., Kohanef D. S., In vivo evaluation of tetrahedral amorphous carbon, Biomaterials 26 (2005), pp. 465-473.
- 5. H. Morawiec, J. Lelątko, G. Stergioudis, T. Goryczka, A. Winiarski, P. Pączkowski, Surface characterization of NiTi shape memory alloy after passivation, Inżynieria Materiałów 37 (2004), pp. 32-35.
- 6. Hoffman A., Prawer S., Kalish R.; Structural transformation of diamond induced by 1-keV Ar-ion irradiation as studied by Auger and secondary-electron spectroscopies and total-secondary electro-yield measurements, Physical Reviev B45 (1992) pp. 12736-12745.
- 7. Kasi S., Kang H., Rabalais J.W., Chemically bonded diamondlike carbon films from ion-beam deposition, Physical Reviev Letters 59 (1987), pp. 75-78.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPG4-0028-0026