A graded nano-TiN coating on biomedical Ti alloy: Low friction coefficient, good bonding and biocompatibility

Cui, Wenfang; Qin, Gaowu; Duan, Jingzhu; Wang, Huan

doi:10.1016/j.msec.2016.10.033

Cited by 100 publications

(49 citation statements)

References 29 publications

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“…One intense TiN (111) diffraction peak can be observed at 36.25°which suggests the presence of the phase with B1 NaCl cubic structure. Comparing the XRD pattern of the TiN coating on the polished substrate with that of the as-received powders [24], a preferential orientation of TiN (111) can be identified, similarly to the TiN layers obtained by Subramanian et al in 2011, and Cui et al in 2017 [7,27], both processed by magnetron sputtering. The comparative analysis of both TiN spectra suggests that TiN can moderately dissolve nitriding the Ti substrate during sintering.…”

Section: Microstructure Of As-deposited and Deposited Coatingssupporting

confidence: 69%

“…The 7-8 μm thick TiN coating prepared by EPD (shown later in Fig. 7) has nanohardness values not far from those reported for sputtered TiN coatings of around 5 μm (10.2 ± 1.2 GPa) [7] and those of the difussion layers of 5-30 μm obtained by nitriding Ti6Al4 V substrates (8.5-11.1 GPa) [10]. On the other hand, although the value of elastic modulus is lower than the regular value of TiN (∼280 GPa) it is higher than that of the coated material (Ti substrate).…”

Section: Mendoza Et Almentioning

confidence: 73%

“…On the other hand, although the value of elastic modulus is lower than the regular value of TiN (∼280 GPa) it is higher than that of the coated material (Ti substrate). The low modulus of the TiN coatings could be related to the difusion of nitrogen throughout the Ti during the thermal treatment, which could alteres its stoichiometry and be reflected in its surface mechanical behaviour [7]. …”

Section: Mendoza Et Almentioning

confidence: 99%

“…In biomedicine as well as in other applications, the surface microstructure modification and/or coating have been assessed as strategies to improve the surface properties of Ti alloys. Physical and chemical vapor deposition (PVD and CVD) have been explored as coating processes to produce ultra-hard films on Ti alloys [4][5][6], but also recently other processes as DC reactive magnetron sputtering [7,8], electrodeposition [9], nitriding [10], laser surface treatment [11], solid state diffusion [12] and ion implanting [13], have been also proposed. Most of those techniques are limited by requirements of "atmosphere" or "pre-placement", complexity or high cost, making these processes difficult to implement in practice.…”

Section: Introductionmentioning

confidence: 99%

“…Results show that surface texturing of the Ti-based substrates plays an important role to prepare anti-wear coating with good adhesion, high toughness, hardness or low coefficient of friction. The mechanical response of TiN coatings yielded the decrease of the coefficient of friction while nanohardness ranges 7-18 GPa for surface nitriding, PVD and sputtered coatings [7,10,21] and Vickers hardness measured for laser cladding coatings achieved 500-1000HV1.0 where its variation depends on the amount of deposited TiN [22].…”

Section: Introductionmentioning

confidence: 99%

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Protective nature of nano-TiN coatings shaped by EPD on Ti substrates

Mendoza

González

Gordo

et al. 2018

Journal of the European Ceramic Society

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A B S T R A C TThe hardness and corrosion resistance of TiN coatings, processed by Electrophoretic Deposition (EPD) to cover polished and unpolished Ti substrates, have been evaluated. A deposition time of 5 min has been enough to obtain a cohesive layer of 7-8 μm in thickness. The coatings were thermally treated in vacuum atmosphere at 1200°C for 1 h with heating and cooling rates of 5°C min The nanohardness values of the polished samples have been increased from 2.8-4.8 GPa up to 6.5-8.5 GPa. Besides, the corrosion current density has been reduced more than one order of magnitude obtaining a protective efficiency of 82%. These values have been compared with other works in literature where authors used complex and costly processing techniques, demonstrating the strong impact of the colloidal processing over the specific properties of the material.

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Section: Microstructure Of As-deposited and Deposited Coatingssupporting

confidence: 69%

Section: Mendoza Et Almentioning

confidence: 73%

Section: Mendoza Et Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Protective nature of nano-TiN coatings shaped by EPD on Ti substrates

Mendoza

González

Gordo

et al. 2018

Journal of the European Ceramic Society

View full text Add to dashboard Cite

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Nitride, Zirconia, Alumina, and Carbide Coatings on Ti6Al4V Femoral Heads: Effect of Deposition Techniques on Mechanical and Tribological Properties

et al. 2017

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Ti6Al4V has been extensively studied in orthopedic applications because of its biocompatibility, desirable mechanical strength, and fatigue resistance. A wide range of bioinert ceramics have been investigated to further develop the tribological and mechanical properties of Ti6Al4V for the production of potential femoral heads. However, an analysis of the literature indicates that the performance of the coatings produced has been inconsistent. In this review, for the first-time deposition techniques of the most widely studied bioinert ceramics namely nitrides, carbides, zirconia, and alumina on Ti6Al4V substrates and their relevant mechanical and tribological performance have been analyzed. Finally, graphene has also been suggested for use together with bioinert ceramics due to its excellent mechanical and physical properties for coating Ti6Al4V femoral heads.

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Mucosa‐Like Conformal Hydrogel Coating for Aqueous Lubrication

et al. 2022

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Mucosa is a protective and lubricating barrier in biological tissue, which has a great clinical inspiration because of its slippery, soft, and hydrophilic surface. However, mimicking mucosal traits on complex surface remains an enormous challenge. Herein, a novel approach to create mucosa‐like conformal hydrogel coating is developed. A thin conformal hydrogel layer mimicking the epithelial layer is obtained by first absorbing micelles, followed by forming covalent interlinks with the polymer substrate via interface‐initiated hydrogel polymerization. The resulting coating exhibits uniform thickness (≈15 µm), mucosa‐matched compliance (Young's modulus = 1.1 ± 0.1 kPa) and lubrication (coefficients of friction = 0.018 ± 0.003), robust interfacial bonding against peeling (peeling strength = 1218.0 ± 187.9 J m–2), as well as high water absorption capacity. It effectively resists adhesion of proteins and bacteria without compromising biocompatibility. As demonstrated by an in vivo cynomolgus monkey model and clinical trial, applications of the mucosa‐like conformal hydrogel coating on the endotracheal tube significantly reduce intubation‐related complications, such as invasive stimuli, mucosal lesions, laryngeal edema, inflammation, and postoperative pain. This work offers a promising prototype for surface decoration of biomedical devices and holds great prospects for clinical translation to enable interventional operations with minimally invasive impacts.

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A graded nano-TiN coating on biomedical Ti alloy: Low friction coefficient, good bonding and biocompatibility

Cited by 100 publications

References 29 publications

Protective nature of nano-TiN coatings shaped by EPD on Ti substrates

Protective nature of nano-TiN coatings shaped by EPD on Ti substrates

Nitride, Zirconia, Alumina, and Carbide Coatings on Ti6Al4V Femoral Heads: Effect of Deposition Techniques on Mechanical and Tribological Properties

Mucosa‐Like Conformal Hydrogel Coating for Aqueous Lubrication

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