Structure and mechanical properties of TiBN coatings fabricated by dc reactive sputtering technique

García-González, L.; Hernández-Torres, J.; García-Ramírez, Pedro J.; Martínez-Castillo, J.; Sauceda, Angel; Herrera-May, Agustín L.; Espinoza‐Beltrán, F.J.

doi:10.1016/j.jmatprotec.2007.01.002

Cited by 17 publications

(7 citation statements)

References 24 publications

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“…[8][9][10] Thus, in this study, a-C:H films were used as the case study materials and their thrombogenicity and cytocompatibility were compared with the ones of boron nitride (TiBN)-, titanium diboride (TiB 2 )-, and carbon nanotube (CNT)-based thin films. Although various studies have focused on the mechanical response, optical, and electron transport properties of TiBN films, 11 their hemocompatibility, as correlated to their structural characteristics, has not been extensively investigated.…”

mentioning

confidence: 99%

Novel nanostructured biomaterials: implications for coronary stent thrombosis

Karagkiozaki¹,

Karagiannidis²,

Kalfagiannis³

et al. 2012

IJN

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Background: Nanomedicine has the potential to revolutionize medicine and help clinicians to treat cardiovascular disease through the improvement of stents. Advanced nanomaterials and tools for monitoring cell-material interactions will aid in inhibiting stent thrombosis. Although titanium boron nitride (TiBN), titanium diboride, and carbon nanotube (CNT) thin films are emerging materials in the biomaterial field, the effect of their surface properties on platelet adhesion is relatively unexplored. Objective and methods: In this study, novel nanomaterials made of amorphous carbon, CNTs, titanium diboride, and TiBN were grown by vacuum deposition techniques to assess their role as potential stent coatings. Platelet response towards the nanostructured surfaces of the samples was analyzed in line with their physicochemical properties. As the stent skeleton is formed mainly of stainless steel, this material was used as reference material. Platelet adhesion studies were carried out by atomic force microscopy and scanning electron microscopy observations. A cell viability study was performed to assess the cytocompatibility of all thin film groups for 24 hours with a standard immortalized cell line. Results: The nanotopographic features of material surface, stoichiometry, and wetting properties were found to be significant factors in dictating platelet behavior and cell viability. The TiBN films with higher nitrogen contents were less thrombogenic compared with the biased carbon films and control. The carbon hybridization in carbon films and hydrophilicity, which were strongly dependent on the deposition process and its parameters, affected the thrombogenicity potential. The hydrophobic CNT materials with high nanoroughness exhibited less hemocompatibility in comparison with the other classes of materials. All the thin film groups exhibited good cytocompatibility, with the surface roughness and surface free energy influencing the viability of cells.

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mentioning

confidence: 99%

Novel nanostructured biomaterials: implications for coronary stent thrombosis

Karagkiozaki¹,

Karagiannidis²,

Kalfagiannis³

et al. 2012

IJN

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“…[31] In contrast, an increase in the nitrogen content can favour the formation of the hexagonal h-BN phase, which entails a considerable decrease in the coating's hardness. [32] As a result, a decrease in nitrogen atoms and an increase in B and Ta atoms in the coatings deposited by the PDCB CFUBMS technique improve their mechanical and tribological properties.…”

Section: Resultsmentioning

confidence: 99%

Adhesion and tribological properties of TiTaBN coatings with a graded interlayer deposited by pulsed DC biased and continuous dc biased magnetron sputtering

Baran

Efeoğlu

Hardell

et al. 2015

Journal of Adhesion Science and Technology

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The properties of TiBN-based coatings are significantly affected by adding alloying elements and coating parameters. Therefore, in this study, TiTaBN coatings with graded interlayer (CWGIL) were deposited on D2 steel substrates by pulsed DC biased (PDCB) and continuously DC biased (CDCB) closed field unbalanced magnetron sputtering (CFUBMS). The structural, mechanical, adhesion and tribological properties of the coatings were analysed with EDS, SEM, XRD, microhardness, scratch testing and a pin-on-disc tribo-tester (under various atmospheric conditions). TiTaBN CWGIL deposited by PDCB magnetron sputtering (MS) had a very dense microstructure, high hardness and a high critical load value. TiTaBN CWGIL deposited by PDCB MS had a lower friction coefficient, the wear rate and the penetration depth in all atmospheric conditions. In conclusion, the application of a PDCB substrate instead of a CDCB one dramatically increases the performance of CFUBMS-deposited TiTaBN coatings.

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“…This in turn influences the mechanical and chemical properties. These are due to the formation of the soft phase h‐BN or any other nitride phase formations and also change the microstructure design leading to different properties . Very few researchers have reported nanocomposite coatings from the Ti–Si–B–C–N system.…”

Section: Introductionmentioning

confidence: 99%

“…These are due to the formation of the soft phase h-BN or any other nitride phase formations and also change the microstructure design leading to different properties. [12] Very few researchers have reported nanocomposite coatings from the Ti-Si-B-C-N system. These studies showed better mechanical properties compared with monolithic coatings of TiN.…”

Section: Introductionmentioning

confidence: 99%

Effect of nitrogen on mechanical, oxidation and structural behaviour of Ti–Si–B–C–N nanocomposite hard coatings deposited by DC sputtering

Mahato

Singh

Pathak

et al. 2016

Surface & Interface Analysis

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Ti–Si–B–C–N film was deposited by DC magnetron sputtering at different argon and nitrogen ratios such as N2/Ar = 1 : 5, 2 : 4, 3 : 3, 4 : 1 and 5 : 0. The formation of TiN and TiB phases was observed because of incorporation of nitrogen. The hardness, modulus, microstructure, structure and bond formation with different nitrogen contents during the deposition were studied by nanoindentation, scanning electron microscope, X‐ray diffraction and X‐ray photoelectron spectroscopy, respectively. The oxidation kinetics of Ti–Si–B–C–N was investigated. The nitrogen incorporation during deposition influences different properties of the coating. Hardness and modulus decreased, and microstructure showed very fine grain presence, and film changes to fully amorphous because of incorporation of nitrogen in the film. Copyright © 2016 John Wiley & Sons, Ltd.

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Structure and mechanical properties of TiBN coatings fabricated by dc reactive sputtering technique

Cited by 17 publications

References 24 publications

Novel nanostructured biomaterials: implications for coronary stent thrombosis

Novel nanostructured biomaterials: implications for coronary stent thrombosis

Adhesion and tribological properties of TiTaBN coatings with a graded interlayer deposited by pulsed DC biased and continuous dc biased magnetron sputtering

Effect of nitrogen on mechanical, oxidation and structural behaviour of Ti–Si–B–C–N nanocomposite hard coatings deposited by DC sputtering

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