Corrosion analysis of hydroxyapatite coated magnesium in simulated body fluid (SBF), phosphate buffered saline (PBS), and Ringer's solution

Zaludin, Mohd Amin Farhan; Jamal, Zul Azhar Zahid; Derman, Mohd Nazree; Kasmuin, Mohd Zaheruddin

doi:10.1016/j.matpr.2019.06.037

Cited by 9 publications

(2 citation statements)

References 11 publications

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“…As shown in Figure 11(b) and (e), the surface of the HA and HA/alumina coatings in the PBS solution did not show any significant changes after immersion, and this indicated that degradation of the coating was insignificant which was similar to previous study. 32,33 In contrast, as seen in Figure 11(c), a thin irregular material was found embedded on the surface of the HA coating sample immersed in Ringer's solution. It is predicted that this thin layer of material deposited from ions that dissolve previously in the solution.…”

Section: Immersion Behaviormentioning

confidence: 89%

Effect of hydroxyapatite/alumina composite coatings using HVOF on immersion behavior of NiTi alloys

et al. 2021

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Hydroxyapatite (HA) coatings have been widely used to improve biocompatibility of metal alloys. This paper discusses the effect of hydroxyapatite (HA) and HA/alumina coated NiTi on their corrosion and dissolution behavior in Phosphate Buffer Saline (PBS) and Ringer’s lactate solutions. The HA was synthesized from biogenic method and used as initial powder in High-Velocity Oxygen Fuel (HVOF) spray technique for the deposition of two coating types, fully HA and HA + 15 wt.% alumina composite coating. The as-synthesized HA had irregular porous structure with relatively low Ca/P ratio of 1.52. Tafel polarization curves obtained from electrochemical test had showed that both coatings increased the corrosion resistance of the NiTi substrates significantly. The ICP-MS analysis results that indicated a low nickel dissolved in both solutions after immersion in 21 days had supported these findings. The nickel levels in the solutions from all samples, either bared substrate or coated samples, in fact below the maximum limit for allergies of the human body. Immersion testing showed the stability of HA and HA/alumina layers as a barrier which maintains its morphology in PBS solution but slightly changed in Ringers.

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Section: Immersion Behaviormentioning

confidence: 89%

Effect of hydroxyapatite/alumina composite coatings using HVOF on immersion behavior of NiTi alloys

et al. 2021

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“…This is higher than the corrosion rate of the zinc silver alloys we measured. Zaludin et al [61] also showed that the corrosion rates changed greatly when SBF (simulated body fluid), Ringer's solution, or PBS were used. For example, the corrosion currents of magnesium increased from 11.19 µA in PBS to 236.05 µA in SBF and 676.87 µA in Ringer solution.…”

Section: Corrosion Measurementsmentioning

confidence: 99%

Mechanical Analysis and Corrosion Analysis of Zinc Alloys for Bioabsorbable Implants for Osteosynthesis

Hagelstein

Zankovic

Kovacs³

et al. 2022

Materials

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Zinc alloys have recently been researched intensely for their great properties as bioabsorbable implants for osteosynthesis. Pure zinc (Zn) itself has relatively poor strength, which makes it insufficient for most clinical use. Research has already proven that the mechanical strength of zinc can be enhanced significantly by alloying it with silver. This study evaluated zinc silver alloys (ZnAg) as well as novel zinc silver titanium alloys (ZnAgTi) regarding their mechanical properties for the use as bioabsorbable implants. Compared to pure zinc the mechanical strength was enhanced significantly for all tested zinc alloys. The elastic properties were only enhanced significantly for the zinc silver alloys ZnAg6 and ZnAg9. Regarding target values for orthopedic implants proposed in literature, the best mechanical properties were measured for the ZnAg3Ti1 alloy with an ultimate tensile strength of 262 MPa and an elongation at fracture of 16%. Besides the mechanical properties, the corrosion rates are important for bioabsorbable implants. This study tested the corrosion rates of zinc alloys in PBS solution (phosphate buffered solution) with electrochemical corrosion measurement. Zinc and its alloys showed favorable corrosion rates, especially in comparison to magnesium, which has a much lower degradation rate and no buildup of hydrogen gas pockets during the process. Altogether, this makes zinc alloys highly favorable for use as material for bioabsorbable implants for osteosynthesis.

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Mechanical, corrosion, and tribocorrosion behavior of biomedical ZrO2 ceramic coatings prepared by thermal oxidation

Sourani

Raeissi²,

Chu³

et al. 2023

J Mater Sci

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Corrosion analysis of hydroxyapatite coated magnesium in simulated body fluid (SBF), phosphate buffered saline (PBS), and Ringer's solution

Cited by 9 publications

References 11 publications

Effect of hydroxyapatite/alumina composite coatings using HVOF on immersion behavior of NiTi alloys

Effect of hydroxyapatite/alumina composite coatings using HVOF on immersion behavior of NiTi alloys

Mechanical Analysis and Corrosion Analysis of Zinc Alloys for Bioabsorbable Implants for Osteosynthesis

Mechanical, corrosion, and tribocorrosion behavior of biomedical ZrO2 ceramic coatings prepared by thermal oxidation

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