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.

Wasyluk L., Boiko V., Markowska M., Hasiak 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), 1-22 [10.3390/ijms22062917].

Graphene coating obtained in a cold-wall CVD process on the Co-Cr Alloy (L-605) for medical applications

Saladino M. L.;
2021-03-13

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.
Settore CHIM/02 - Chimica Fisica
Wasyluk L., Boiko V., Markowska M., Hasiak 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), 1-22 [10.3390/ijms22062917].
File in questo prodotto:
File Dimensione Formato  
85_GO-alloy.pdf

accesso aperto

Descrizione: Articolo principale
Tipologia: Versione Editoriale
Dimensione 6.69 MB
Formato Adobe PDF
6.69 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/500152
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact