Microstructural characterization of Ti–C–N thin films prepared by reactive crossed beam pulsed laser deposition

Escobar-Alarcón, L.; Medina, Victor; Camps, E.; Romero, S.; Fernández, M.; Solís-Casados, Dora Alicia

doi:10.1016/j.apsusc.2011.05.094

Cited by 27 publications

(10 citation statements)

References 10 publications

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“…For the samples deposited with 0.37 and 0.62 Ag/Ti atomic ratio, two broad intense bands were detected between 1200 and 1700 cm −1 . These bands are assigned by several authors [31–33] to carbon-based phases such as D and G bands of carbon materials at 1332 and 1580 cm −1 , respectively [32]. Also, C–N vibrational modes have been reported in this region [31].…”

Section: Resultsmentioning

confidence: 99%

Influence of surface features on the adhesion of Staphylococcus epidermidis to Ag–TiCN thin films

Carvalho

Henriques

Oliveira

et al. 2013

Science and Technology of Advanced Materials

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Staphylococcus epidermidis has emerged as one of the major nosocomial pathogens associated with infections of implanted medical devices. The initial adhesion of these organisms to the surface of biomaterials is assumed to be an important stage in their colonization. The main objective of this work is to assess the influence of surface features on the adhesion of S. epidermidis to Ag–TiCN coatings deposited by dc reactive magnetron sputtering. The structural results obtained by x-ray diffraction show that the coatings crystallize in a B1-NaCl crystal structure typical of TiC0.3N0.7. The increase of Ag content promoted the formation of Ag crystalline phases. According to the results obtained with atomic force microscopy, a decrease on the surface roughness of the films from 39 to 7 nm is observed as the Ag content increases from 0 to 15 at.%. Surface energy results show that the increase of Ag promotes an increase in hydrophobicity. Bacterial adhesion and biofilm formation on coatings were assessed by the enumeration of the number of viable cells. The results showed that the surface with lower roughness and higher hydrophobicity leads to greater bacterial adhesion and biofilm formation, highlighting that surface morphology and hydrophobicity rule the colonization of materials.

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Section: Resultsmentioning

confidence: 99%

Influence of surface features on the adhesion of Staphylococcus epidermidis to Ag–TiCN thin films

Carvalho

Henriques

Oliveira

et al. 2013

Science and Technology of Advanced Materials

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“…The broad peaks observed at 227, 314, and 560 cm −1 in the unheated TiN-c plate are due to the rock salt structure of TiN [28]. The anatase peaks were observed in the plates heated at 400 and 450°C.…”

Section: Formation Of Titania By Oxidizing Titanium Nitride Phasementioning

confidence: 78%

Photocatalytic activity of titania layer prepared by oxidizing titanium compounds on titanium plate surface

Nishikiori

Takei

Oki³

et al. 2012

Applied Catalysis B: Environmental

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Anatase-type nanocrystalline titania layers were prepared by oxidizing the crystalline titanium nitride and carbon-doped titanium nitride phases prepared on a titanium plate surface. Identification of the crystalline phase was confirmed by the XRD patterns and Raman spectra of these plates. The photocatalytic activity of the plates was evaluated by observing the photocalytic degradation process of acetaldehyde gas during UV irradiation by gas chromatography. A relatively larger amount of the anatase phase was formed on the very thin surface layer by heating the carbon-doped titanium nitride phase at 500ºC, and it exhibited a higher photocatalytic activity for the acetaldehyde degradation. The activity was determined not only by the amount of the anatase phase, but also by the crystallite size depending on the surface area and charge transfer efficiency. The photocatalytic activity is suggested to be due to the anatase phase existing on the thin surface layer accessible to the reactants.

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“…The coating deposited in N2 had peaks at 300, 520, and 690 cm -1 . This shift towards lower frequencies and the decrease in peak intensities was caused by the partial substitution of C atoms by N in the TiC lattice and formation of the TiCN phase [42]. Raman spectrum of the coating The coating deposited in Ar had peaks located at 430 and 655 cm −1 , which corresponded to the TiC phase [41].…”

Section: Resultsmentioning

confidence: 99%

Structure and Properties of Protective Coatings Deposited by Pulsed Cathodic Arc Evaporation in Ar, N2, and C2H4 Environments using the TiC–NiCr–Eu2O3 Cathode

Kiryukhantsev-Korneev

Сытченко

Sheveyko

et al. 2019

Coatings

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Coatings were deposited by pulsed cathodic arc evaporation (PCAE) of a TiC–NiCr–Eu2O3 cathode fabricated by the powder metallurgy method. The deposition was carried out in different gas media, including Ar, N2, and C2H4. The structure, elemental, and phase compositions of coatings were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), Raman spectroscopy, and glow discharge optical emission spectroscopy (GDOES). Coatings were tested in terms of their hardness, elastic modulus, elastic recovery, friction coefficient, and wear and corrosion resistance. The obtained results demonstrated that the coatings deposited in Ar possessed higher hardness up to 20 GPa and an elastic recovery of 92%. Coatings produced using С2H4 showed the minimum friction coefficient (0.35 ± 0.01). The use of nitrogen as a gas medium led to the formation of coatings with the best corrosion resistance in sulfuric acid. Coatings formed in N2 had a free corrosion potential of +0.28 V and a corrosion current density of 0.012 µA/cm2.

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Microstructural characterization of Ti–C–N thin films prepared by reactive crossed beam pulsed laser deposition

Cited by 27 publications

References 10 publications

Influence of surface features on the adhesion of Staphylococcus epidermidis to Ag–TiCN thin films

Influence of surface features on the adhesion of Staphylococcus epidermidis to Ag–TiCN thin films

Photocatalytic activity of titania layer prepared by oxidizing titanium compounds on titanium plate surface

Structure and Properties of Protective Coatings Deposited by Pulsed Cathodic Arc Evaporation in Ar, N2, and C2H4 Environments using the TiC–NiCr–Eu2O3 Cathode

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