@Article{HincapieCGuTrOlAlCa:2020:InTiTi,
               author = "Hincapie C., W. S. and Guti{\'e}rrez B., J. M. and Trava-Airoldi, 
                         Vladimir Jesus and Olaya F., J. J. and Alfonso, E. and Capote, 
                         G.",
          affiliation = "{Fundaci{\'o}n Universitaria los Libertadores} and 
                         {Fundaci{\'o}n Universitaria los Libertadores} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidad Nacional 
                         de Colombia} and {Universidad Nacional de Colombia} and 
                         {Universidad Nacional de Colombia}",
                title = "Influence of the TixSi and TixSi/a-Si:H interlayers on adherence 
                         of diamond-like carbon coatings",
              journal = "Diamond and Related Materials",
                 year = "2020",
               volume = "109",
                pages = "e108079",
                month = "Nov.",
             keywords = "Diamond-like carbon, interlayer, adherence, titanium, silicon.",
             abstract = "The effect of two different interlayers on the adherence of DLC 
                         coatings to AISI 316 L stainless steel was studied. 
                         Titanium\‑silicon (TixSi) interlayers and 
                         titanium\‑silicon plus amorphous hydrogenated silicon 
                         (TixSi/a-Si:H) interlayers were deposited. TixSi intermediate 
                         layers were grown with three different thicknesses via the RF 
                         sputtering technique, while a-Si:H interlayers and DLC coatings 
                         were deposited using a DC-PECVD system with an active screen as an 
                         additional cathode. The microstructural characterization of the 
                         titanium\‑silicon interlayer was carried out through the 
                         X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) 
                         techniques, and chemical analysis was done by means of 
                         energy-dispersive X-ray spectroscopy (EDS), while DLC coatings 
                         were studied with Raman spectroscopy. The degree of adhesion of 
                         the DLC coatings to AISI 316 L stainless steel substrates was 
                         analyzed using critical load measurements and a VDI 3198 
                         indentation test. XRD results showed that new crystalline phases 
                         were not present in the TixSi interlayer. XPS spectra showed a 
                         bond between the Si[sbnd]Fe and the Ti-Fe-O. The adherence results 
                         showed that the DLC coatings deposited using TixSi with 200 nm 
                         thickness exhibited a critical load value of 5 N, while the 
                         coatings with other thicknesses were completely delaminated when 
                         the same load was applied. These results suggested that the low 
                         adhesion of the DLC coating was due to the oxides formed at the 
                         TixSi-DLC interface. For the AISI 316 L/TixSi/a-Si:H/DLC coating, 
                         a critical load of 26 N was determined. The formation of titanium 
                         silicide, iron silicide, and silicon carbide in the interfaces 
                         allowed an increase in the adhesion strength between the 
                         interlayers. The Raman results showed that the DLC coatings 
                         exhibited good microstructural properties and hydrogen contents 
                         around 28 at.%. The DLC coatings also exhibited a hardness of 25 
                         GPa.",
                  doi = "10.1016/j.diamond.2020.108079",
                  url = "http://dx.doi.org/10.1016/j.diamond.2020.108079",
                 issn = "0925-9635",
             language = "en",
           targetfile = "hincapie_influence.pdf",
        urlaccessdate = "27 abr. 2024"
}