In-vitro corrosion and bioactivity behavior of tailored calcium phosphate-containing zinc oxide coating prepared by plasma electrolytic oxidation

Aidin Bordbar-Khiabani; Sema Ebrahimi; Benyamin Yarmand

doi:10.1016/j.corsci.2020.108781

In-vitro corrosion and bioactivity behavior of tailored calcium phosphate-containing zinc oxide coating prepared by plasma electrolytic oxidation

Aidin Bordbar-Khiabani
, Sema Ebrahimi
, Benyamin Yarmand^*

^*Corresponding author for this work

Not published at VTT

Materials and Energy Research Center (MERC)

Research output: Contribution to journal › Article › Scientific › peer-review

66 Citations (Scopus)

Abstract

Calcium phosphate-containing coatings were prepared on pure zinc substrate by an in-situ plasma electrolyte oxidation process in the electrolyte containing C₄H₆O₄Ca and CaHPO₄ additives for generation biodegradable implants. The polarization test and electrochemical impedance spectroscopy indicated excellent resistance properties of the outer porous and inner barrier layers for the coating with higher thickness prepared at optimum electrolyte concentration. In-vitro bioactivity evaluation revealed that the cube-shaped particles consisting of Ca₃(PO₄)₂, Zn₃(PO₄)₂ and CaCO₃ phases were observed for the optimized sample after soaking in simulated body fluid up to 28 days. This coating indicated the smallest pH and lowest degradation rate.

Original language	English
Article number	108781
Journal	Corrosion Science
Volume	173
DOIs	https://doi.org/10.1016/j.corsci.2020.108781
Publication status	Published - 15 Aug 2020
MoE publication type	A1 Journal article-refereed

Funding

This research work has been supported by a research grant (No.: 247383 ) by Materials and Energy Research Center (MERC), Karaj, Iran .

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

Bioactive and biodegradable implants
Calcium phosphate-containing coating
In-situ plasma electrolytic oxidation
In-vitro corrosion resistance
Zinc oxide

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10.1016/j.corsci.2020.108781

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title = "In-vitro corrosion and bioactivity behavior of tailored calcium phosphate-containing zinc oxide coating prepared by plasma electrolytic oxidation",

abstract = "Calcium phosphate-containing coatings were prepared on pure zinc substrate by an in-situ plasma electrolyte oxidation process in the electrolyte containing C4H6O4Ca and CaHPO4 additives for generation biodegradable implants. The polarization test and electrochemical impedance spectroscopy indicated excellent resistance properties of the outer porous and inner barrier layers for the coating with higher thickness prepared at optimum electrolyte concentration. In-vitro bioactivity evaluation revealed that the cube-shaped particles consisting of Ca3(PO4)2, Zn3(PO4)2 and CaCO3 phases were observed for the optimized sample after soaking in simulated body fluid up to 28 days. This coating indicated the smallest pH and lowest degradation rate.",

keywords = "Bioactive and biodegradable implants, Calcium phosphate-containing coating, In-situ plasma electrolytic oxidation, In-vitro corrosion resistance, Zinc oxide",

author = "Aidin Bordbar-Khiabani and Sema Ebrahimi and Benyamin Yarmand",

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year = "2020",

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T1 - In-vitro corrosion and bioactivity behavior of tailored calcium phosphate-containing zinc oxide coating prepared by plasma electrolytic oxidation

AU - Bordbar-Khiabani, Aidin

AU - Ebrahimi, Sema

AU - Yarmand, Benyamin

PY - 2020/8/15

Y1 - 2020/8/15

N2 - Calcium phosphate-containing coatings were prepared on pure zinc substrate by an in-situ plasma electrolyte oxidation process in the electrolyte containing C4H6O4Ca and CaHPO4 additives for generation biodegradable implants. The polarization test and electrochemical impedance spectroscopy indicated excellent resistance properties of the outer porous and inner barrier layers for the coating with higher thickness prepared at optimum electrolyte concentration. In-vitro bioactivity evaluation revealed that the cube-shaped particles consisting of Ca3(PO4)2, Zn3(PO4)2 and CaCO3 phases were observed for the optimized sample after soaking in simulated body fluid up to 28 days. This coating indicated the smallest pH and lowest degradation rate.

AB - Calcium phosphate-containing coatings were prepared on pure zinc substrate by an in-situ plasma electrolyte oxidation process in the electrolyte containing C4H6O4Ca and CaHPO4 additives for generation biodegradable implants. The polarization test and electrochemical impedance spectroscopy indicated excellent resistance properties of the outer porous and inner barrier layers for the coating with higher thickness prepared at optimum electrolyte concentration. In-vitro bioactivity evaluation revealed that the cube-shaped particles consisting of Ca3(PO4)2, Zn3(PO4)2 and CaCO3 phases were observed for the optimized sample after soaking in simulated body fluid up to 28 days. This coating indicated the smallest pH and lowest degradation rate.

KW - Bioactive and biodegradable implants

KW - Calcium phosphate-containing coating

KW - In-situ plasma electrolytic oxidation

KW - In-vitro corrosion resistance

KW - Zinc oxide

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DO - 10.1016/j.corsci.2020.108781

M3 - Article

AN - SCOPUS:85085949442

SN - 0010-938X

VL - 173

JO - Corrosion Science

JF - Corrosion Science

M1 - 108781

ER -

In-vitro corrosion and bioactivity behavior of tailored calcium phosphate-containing zinc oxide coating prepared by plasma electrolytic oxidation

Abstract

Funding

UN SDGs

Keywords

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