Graphene Coating Obtained in a Cold-Wall CVD Process on the Co-Cr Alloy (L-605) 
for Medical Applications

Wasyluk, Łukasz; Boiko, Vitalii; Markowska, Marta; Haisak, Mariusz; Saladino, Maria Luisa; Hreniak, Dariusz; Amati, Natteo; Gregoratti, Luca; Zeller, Patrick; Biały, Dariusz; Arkowski, Jacek; Wawrzynska, Magdalena

doi:10.3390/ijms22062917

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Graphene Coating Obtained in a Cold-Wall CVD Process on the Co-Cr Alloy (L-605) for Medical Applications

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Zeller, Patrick
Elettra–Sincrotrone Trieste S.C.p.A., SS14—km 163.5 in Area Science Park;
Helmholtz-Zentrum Berlin für Materialien and Energie GmbH, BESSY II;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Wasyluk, Ł., Boiko, V., Markowska, M., Haisak, M., Saladino, M. L., Hreniak, D., et al. (2021). Graphene Coating Obtained in a Cold-Wall CVD Process on the Co-Cr Alloy (L-605) for Medical Applications. International Journal of Molecular Sciences, 22(6): 2917. doi:10.3390/ijms22062917.

Cite as: https://hdl.handle.net/21.11116/0000-0008-30B9-1

Abstract

Graphene coating on the cobalt-chromium alloy was optimized and successfully carried out by a cold-wall chemical vapor deposition (CW-CVD) method. A uniform layer of graphene for a large area of the Co-Cr alloy (discs of 10 mm diameter) was confirmed by Raman mapping coated area and analyzing specific G and 2D bands; in particular, the intensity ratio and the number of layers were calculated. The effect of the CW-CVD process on the microstructure and the mor-phology of the Co-Cr surface was investigated by scanning X-ray photoelectron microscope (SPEM), atomic force microscopy (AFM), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Nanoindentation and scratch tests were performed to determine mechanical properties of Co-Cr disks. The results of microbiological tests indicate that the studied Co-Cr alloys covered with a graphene layer did not show a pro-coagulant effect. The obtained results confirm the possibility of using the developed coating method in medical applications, in particular in the field of cardiovascular diseases.