Scratch resistance and electrochemical corrosion behavior of hydroxyapatite coatings on Ti6Al4V in simulated physiological media

Roland, Thierry; Pelletier, Hervé; Krier, Joël

doi:10.1007/s10800-012-0504-3

Cited by 27 publications

(12 citation statements)

References 39 publications

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“…The presence of carbonate CO 3 2− at 1450 cm −1 suggests that there is a carbonate ion substitution for either hydroxyl or phosphate ions in HA during plasma deposition. 20 A representative overview of the HA topography is also shown in Figure 2. The AFM micrographs offer a detailed analysis of the surface topography on a small scale (2 × 2 μm).…”

Section: Resultsmentioning

confidence: 99%

Interfacial Characteristics and Determination of Cohesive and Adhesive Strength of Plasma-Coated Hydroxyapatite via Nanoindentation and Microscratch Techniques

McManamon

Silva

Power³

et al. 2014

Langmuir

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We investigate the chemical composition and mechanical properties of plasma-deposited hydroxyapatite on grit-blasted Ti-6Al-4V coupons as models of typical prosthetic hip implants. Nanoindentation is used to extract the mechanical properties of the hydroxyapatite (HA) coating and to evaluate the behavior of the material as a function of distance from the interface. A microscratch technique was used to determine parameters of cohesive and adhesive failure of the material that are critical in determining the functionality of these biomedical devices. This delamination method has not been studied in detail before and is usually considered to be unsuitable because of the thickness of the HA and the roughness of the substrate. However, through cross-section analysis of the scratch test, we can determine the point at which the HA delaminates from the substrate. It was concluded that spallation occurs locally, and there is no evidence of gross spallation, indicating that the coating is well adhered to the substrate.

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Section: Resultsmentioning

confidence: 99%

Interfacial Characteristics and Determination of Cohesive and Adhesive Strength of Plasma-Coated Hydroxyapatite via Nanoindentation and Microscratch Techniques

McManamon

Silva

Power³

et al. 2014

Langmuir

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“…The coating strengths measured by the scratch test were 31.7 ± 3.1 N and 47.2 ± 15.9 N for P10-L50 and P10-L100 laser conditions, respectively (Figure 3h). It was reported that the coating strengths of the layers formed by the dip coating, pulsed laser deposition, and the plasma-spray methods used in medical implant surface treatment [56,57] were 0.002-2 N, [58,59] 0.6-5.29 N, [60,61] and 11.18 N, [62] respectively, whereas, the coating method developed in this study provided a comparatively higher coating strength (31.7-47.2 N), which is sufficient for use in clinical practice (Table S3, Supporting Information).…”

Section: Hap Synthesis and Coating In A Single-step Process Using The Nanosecond Lasermentioning

confidence: 99%

Robust Hydroxyapatite Coating by Laser‐Induced Hydrothermal Synthesis

Chung

Seo

et al. 2020

Adv Funct Materials

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Owing to enhanced biocompatibility and osseointegration, hydroxyapatite (HAp) coatings are often applied to biomedical devices that are implanted directly on the bone. Although various HAp coating techniques have been developed, they are restricted due to the time-consuming HAp synthesis and additional coating processes. Herein, the development of a rapid single-step method for simultaneous synthesis and coating of HAp via nanosecond laser surface treatment is described. In the conventional HAp-coating method, the resulting interface between the HAp layer and the base material is clearly distinguished. However, in this method, HAp synthesis and coating occur simultaneously via the melting of the base material (i.e., titanium, polyetheretherketone, and polycaprolactone) to form a gradient HAp-base material composite coating layer. The resultant coating layer on a titanium surface exhibits a binding force of 31.7-47.2 N, which is sufficient for medical implant applications. Changing the laser irradiation conditions provides quantitative adjustment of the HAp formation process and coating layer thickness. Furthermore, the resulting HAp coating layer better facilitates the attachment of bone cells. These results offer a breakthrough in the surface treatment of bone-bonding sites of metal and polymer biomedical devices.

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“…28. Furthermore, fatigue [148,774], scratch [744,749,[775][776][777][778][779] and pullout [775] testing, as well as wear resistance [777] are among the most valuable techniques to provide additional information on the mechanical behavior of CaPO 4 deposits. The scratch test is performed with reference to ISO 20502:2005 [780].…”

Section: Adhesion and Cohesionmentioning

confidence: 99%

Calcium orthophosphate deposits: Preparation, properties and biomedical applications

Dorozhkin¹

2015

Materials Science and Engineering: C

262

140

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Scratch resistance and electrochemical corrosion behavior of hydroxyapatite coatings on Ti6Al4V in simulated physiological media

Cited by 27 publications

References 39 publications

Interfacial Characteristics and Determination of Cohesive and Adhesive Strength of Plasma-Coated Hydroxyapatite via Nanoindentation and Microscratch Techniques

Interfacial Characteristics and Determination of Cohesive and Adhesive Strength of Plasma-Coated Hydroxyapatite via Nanoindentation and Microscratch Techniques

Robust Hydroxyapatite Coating by Laser‐Induced Hydrothermal Synthesis

Calcium orthophosphate deposits: Preparation, properties and biomedical applications

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