Characterization of Hydroxyapatite Coating on 316L Stainless Steel by Sol–Gel Technique

Kaur, Sukhdeep; Bala, Niraj; Khosla, Charu

doi:10.3103/s1068375519030104

Cited by 16 publications

(5 citation statements)

References 39 publications

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“…The sol-gel deposition process is another common technique for surface modification that follows a simple procedure and enables coating the complex shapes of metallic biomaterials [206,207,[217][218][219]. Sarbjit et al [205] synthesized a HAp-based layer on a 316L stainless steel through the sol-gel method. The obtained coating thickness of about 250 µm showed high corrosion resistance and excellent bioactivity.…”

Section: Current Surface Coating Techniques For the Biomedical Applicationsmentioning

confidence: 99%

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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Together, 316L steel, magnesium-alloy, Ni-Ti, titanium-alloy, and cobalt-alloy are commonly employed biomaterials for biomedical applications due to their excellent mechanical characteristics and resistance to corrosion, even though at times they can be incompatible with the body. This is attributed to their poor biofunction, whereby they tend to release contaminants from their attenuated surfaces. Coating of the surface is therefore required to mitigate the release of contaminants. The coating of biomaterials can be achieved through either physical or chemical deposition techniques. However, a newly developed manufacturing process, known as powder mixed-electro discharge machining (PM-EDM), is enabling these biomaterials to be concurrently machined and coated. Thermoelectrical processes allow the migration and removal of the materials from the machined surface caused by melting and chemical reactions during the machining. Hydroxyapatite powder (HAp), yielding Ca, P, and O, is widely used to form biocompatible coatings. The HAp added-EDM process has been reported to significantly improve the coating properties, corrosion, and wear resistance, and biofunctions of biomaterials. This article extensively explores the current development of bio-coatings and the wear and corrosion characteristics of biomaterials through the HAp mixed-EDM process, including the importance of these for biomaterial performance. This review presents a comparative analysis of machined surface properties using the existing deposition methods and the EDM technique employing HAp. The dominance of the process factors over the performance is discussed thoroughly. This study also discusses challenges and areas for future research.

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Section: Current Surface Coating Techniques For the Biomedical Applicationsmentioning

confidence: 99%

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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“…Liu et al [67], Cheng et al [141], and Chiu et al [142] demonstrated that the presence of the sol-gel coatings improves NiTi alloy corrosion resistance reducing Ni release, which can cause allergenic and toxic effects when its concentration exceeds a certain level in the body. Kaur et al [143] prepared HA coatings on 316L stainless steel by the sol-gel method and found that hydroxyapatite-coated samples showed better corrosion resistance and better implant properties as compared to uncoated 316L stainless steel. Thus, hydroxyapatite coatings are expected to enhance the corrosion resistance of alloys by forming a barrier against the dissolution of metal ions and at the same time promote implant bone-bonding ability [144].…”

Section: Coating For Corrosion Protectionmentioning

confidence: 99%

Surface Modifications for Implants Lifetime extension: An Overview of Sol-Gel Coatings

Tranquillo

Bollino

2020

Coatings

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The limited lifetime of implants entails having patients undergo replacement surgeries, several times throughout life in young patients, with significant risks for them and extensive cost for healthcare service. The overcoming of such inconvenience is still today a hard challenge for the scholars of the biomedical and biomaterial fields. The improvement of the currently employed implants through surface modification by coatings application is the main strategy proposed to avoid implants failure, and the sol-gel coating is an ideal technology to achieve this goal. Therefore, the present review aims to provide an overview of the most important problems leading to implant failure, the sol-gel coating technology, and its use as a strategy to overcome such issues.

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“…11,12 In addition, the organic-inorganic HAP biocomposites reinforced with biopolymers and/or metal oxides were proposed as a way to overcome the limitations of practical applications of HAP. [13][14][15][16] Thereby, composite coatings of HAP onto 316L stainless steel have been found to improve mechanical properties, 17,18 corrosion protection, [19][20][21] bioactivity, and biocompatibility of the metal implants. [22][23][24][25] However, there are not many works that have studied the properties and behavior of the uncoated 316L in a biological or physiological environment simulated to human body such as minimum essential medium-alpha (α-MEM).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the organic–inorganic HAP biocomposites reinforced with biopolymers and/or metal oxides were proposed as a way to overcome the limitations of practical applications of HAP 13–16 . Thereby, composite coatings of HAP onto 316L stainless steel have been found to improve mechanical properties, 17,18 corrosion protection, 19–21 bioactivity, and biocompatibility of the metal implants 22–25 …”

Section: Introductionmentioning

confidence: 99%

Effect of the culture medium on the behavior of the austenitic stainless steel with the specific 316L grade

Sidane

Khireddine

2023

Surface & Interface Analysis

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The use of 316L stainless steel as an orthopedic bone plate material or as a substrate for coating implies the need to study its properties in a biological medium simulating human body environment. Therefore, the aim of this work is to investigate the microstructural characteristics, corrosion resistance, and mechanical properties of 316L stainless steel in the culture medium and then to check the cytotoxicity of the stainless steel in the presence of human mesenchymal stem cells. The characteristics of the stainless steel were evaluated by studying the microstructure of the samples in untreated state and after soaking in minimum essential medium‐alpha (α‐MEM) for 7 days. The results indicated the formation on the surface of the 316L stainless steel of goethite and deposits composed of Ca and P with porous and amorphous structures, which led to the decrease in the elastic modulus and the hardness of the soaked stainless steel as shown by nanoindentation test. Nevertheless, the hardness and the elastic modulus of the steel after soaking were influenced only for a surface depth of approximately 0.1% of the thickness of the sample. The potentiodynamic polarization curves exhibited that the corrosion resistance of the soaked stainless steel was reduced because of the higher passive current density. However, it should be noticed that the breakdown potential of the steel after soaking was slightly higher, leading to a wider range of passivation. In addition, microscopy examination showed the mesenchymal stem cell adhesion on the materials after 9 days of culture.

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Characterization of Hydroxyapatite Coating on 316L Stainless Steel by Sol–Gel Technique

Cited by 16 publications

References 39 publications

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

Surface Modifications for Implants Lifetime extension: An Overview of Sol-Gel Coatings

Effect of the culture medium on the behavior of the austenitic stainless steel with the specific 316L grade

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