Title :
DLC films for stent applications
Author :
Serbezov, Valery ; Reifart, Nicolaus ; Herbst, Franz
Author_Institution :
Vascotec GmbH, Michelstadt, Germany
Abstract :
DLC and metal/DLC nanocomposites coatings deposited by means of pulsed laser deposition /PLD/ technique, using high power UV nitrogen laser are described. The DLC and M/DLC nanocomposite coatings are deposited on substrates stents made from 316L SS material and NITINOL (NiTi) alloy. The tests and analysis of the morphology-, structure-, physical-, mechanical- electrochemical- and chemical parameters are presented: SEM pictures for morphology of the surface; XRD analysis for the structure; Raman spectroscopy for characterization of the DLC films, IR spectroscopy and comparative corrosion analysis. Chemical material analysis of the substrates has been performed by EDAX (energy dispersive X-ray microanalysis). The thickness of the deposited DLC films ranges between 80 - 120 nm, measured by interferometric method.
Keywords :
Raman spectra; X-ray chemical analysis; biomedical materials; coatings; crystal structure; diamond-like carbon; infrared spectra; nanocomposites; nickel alloys; pulsed laser deposition; stents; surface morphology; titanium alloys; 316L SS material; C; C-NiTi; DLC films; EDAX; IR spectroscopy; NITINOL alloy; Raman spectroscopy; SEM; XRD; chemical property; comparative corrosion analysis; crystal structure; energy dispersive X-ray microanalysis; mechanical- electrochemical property; metal/DLC nanocomposites coatings; pulsed laser deposition; stent; surface morphology; wavelength 80 nm to 120 nm; Chemical analysis; Chemical lasers; Coatings; Laser theory; Nanocomposites; Nitrogen; Optical pulses; Power lasers; Pulsed laser deposition; Spectroscopy; M/DLC nanocomposites coatings; PLD; analysis; morphology; stent; structures;
Conference_Titel :
ICTON Mediterranean Winter Conference,2009. ICTON-MW 2009. 3rd
Conference_Location :
Angers
Print_ISBN :
978-1-4244-5745-8
Electronic_ISBN :
978-1-4244-5746-5
DOI :
10.1109/ICTONMW.2009.5385606
