MECHANICAL PROPERTIES OF Cr-DLC LAYERS PREPARED BY HYBRID LASER TECHNOLOGY

Authors

  • Petr Písařík Czech Technical University in Prague, Faculty of Biomedical Engineering, Sitna sq. 3105, 272 01 Kladno, Czech Republic Institute of Physics of the Czech of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
  • Miroslav Jelínek Czech Technical University in Prague, Faculty of Biomedical Engineering, Sitna sq. 3105, 272 01 Kladno, Czech Republic Institute of Physics of the Czech of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
  • Jan Remsa Czech Technical University in Prague, Faculty of Biomedical Engineering, Sitna sq. 3105, 272 01 Kladno, Czech Republic Institute of Physics of the Czech of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
  • Zdeněk Tolde Institute of Physics of the Czech of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic

DOI:

https://doi.org/10.14311/APP.2017.8.0020

Abstract

Diamond like carbon (DLC) layers have excellent biological properties for use in medicine for coating implants, but poor adhesion to biomedical alloys. The adhesion can be improved by doping the DLC layer by chromium, as described in this article. Chromium doped diamond like carbon layers (Cr‑DLC) were deposited by hybrid deposition system using KrF excimer laser and magnetron sputtering. Carbon and chromium contents were determined by wavelength dispersive X-ray spectroscopy. Mechanical properties were studied by nanoindentation. Hardness and reduced Young's modulus reached 31.2 GPa and 271.5 GPa, respectively. Films adhesion was determined by scratch test and reached 19 N for titanium substrates. Good adhesion to biomedical alloys and high DLC hardness will help to progress in the field of implantology.

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Published

2017-06-30

Issue

Vol. 8 (2017): BIOMATERIALS AND SURFACES 2016

Section

Articles

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