Development and characterization of sol–gel silica–alumina composite coatings on AISI 316L for implant applications

Tiwari, Shashi Kant; Mishra, Trilochan; Gunjan, M K; Bhattacharyya, A. S.; Singh, Tejwant; Singh, Raghuvir

doi:10.1016/j.surfcoat.2007.02.026

Cited by 85 publications

(29 citation statements)

References 28 publications

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“…The as-sputtered coatings are usually non-stoichiometric and amorphous, which can cause some serious problems such as poor adhesion and excessive coating dissolution rates ( Ref 18,22,23). Using the dip-coating method, it was observed that the current HAP coatings are stoichiometric, and crystalline as evidenced by XRD, and strongly bonded to the substrate (as high as 21 MPa).…”

Section: Resultsmentioning

confidence: 99%

The Effect of Coating Thickness on Corrosion Resistance of Hydroxyapatite Coated Ti6Al4V and 316L SS Implants

Aksakal

Gavgalı

Dikici

2009

J. of Materi Eng and Perform

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Hydroxyapatite (HAP) has been coated onto Ti6Al4V and 316L SS substrates by sol-gel method. The coating thicknesses for the analysis were about 40 and 72 lm. Adhesion and corrosion tests have been conducted on uncoated and HAP-coated substrates. The coatings were characterized by XRD, SEM, and adhesion analysis. The corrosion resistance was examined in vitro by potentiodynamic polarization technique in RingerÕs solution at room temperature. Electrochemical analysis indicated that the highest corrosion susceptibility was found on 72-lm-coated 316L SS, and the 40-lm HAP-coated Ti6Al4V showed the highest corrosion resistance. It was observed that the coating thickness was an effective parameter on both adhesion and corrosion resistance. It was shown that adhesion and corrosion resistance decreased with increasing coating thickness on both substrates.

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Section: Resultsmentioning

confidence: 99%

The Effect of Coating Thickness on Corrosion Resistance of Hydroxyapatite Coated Ti6Al4V and 316L SS Implants

Aksakal

Gavgalı

Dikici

2009

J. of Materi Eng and Perform

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“…Biomaterials that are implanted in the body are exposed to body fluids containing various anions (Cl À , HC − O 3 , HP − O 4 2 ), cations (Na þ , K þ , Ca þ 2 , Mg þ 2 ), and dissolved oxygen [3][4][5]. Corrosion of the metallic implants causes the loosening of prosthesis and also the formation of free metal ions such as Fe, Ni, Cr [6]. Furthermore, high chloride content in the body fluid may cause corrosion problems in such metallic materials [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of hydroxyapatite/SiO 2 hybride coatings on surface morphology and corrosion resistance of REX-734 alloy

Say

Aksakal

Dikici

2016

Ceramics International

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“…[5] Highly protective Al-and Si-containing oxides play an important role also in such applications, since they can prevent harmful release of metal cations (especially Ni) to nearby tissues. [6,7] For these reasons, a detailed understanding of the formation and modification of nanoscale surface oxides is required in order to develop the surface properties of stainless steel materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of minor alloying elements on the initial stages of oxidation of austenitic stainless steel materials

Jussila

Lahtonen

Lampimäki

et al. 2008

Surface & Interface Analysis

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Surface oxidation of Fe-19Cr-17Ni, Fe-19Cr-18Ni-1Al and TiC-enriched Fe-19Cr-18Ni-1Al alloys was investigated by photoelectron spectroscopy (PES). The experiments were conducted at 323 K in pure O 2 (2.7 × 10 −6 mbar). Composition and morphology of the nanoscale surface oxides were determined quantitatively by inelastic electron background analysis. Moreover, use of synchrotron radiation facilities were necessary to obtain improved sensitivity for studying minor alloying elements such as Al and Si. The results indicate oxygen-induced segregation of Al, which significantly hinders the oxidation of the major alloying elements Fe and Cr. Ti remains in its inert carbide form. The relative concentration of Fe within the oxide layer was found to increase with the oxide-layer thickness, indicating greater mobility of Fe relative to other alloying elements.

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Development and characterization of sol–gel silica–alumina composite coatings on AISI 316L for implant applications

Cited by 85 publications

References 28 publications

The Effect of Coating Thickness on Corrosion Resistance of Hydroxyapatite Coated Ti6Al4V and 316L SS Implants

The Effect of Coating Thickness on Corrosion Resistance of Hydroxyapatite Coated Ti6Al4V and 316L SS Implants

Effect of hydroxyapatite/SiO 2 hybride coatings on surface morphology and corrosion resistance of REX-734 alloy

Influence of minor alloying elements on the initial stages of oxidation of austenitic stainless steel materials

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