Evolution and performance of a MgO/HA/DCPD gradient coating on pure magnesium

Jiaping Han; Bérengère Luthringer; Shawei Tang; Jin Hu; Carsten Blawert; Mikhail L. Zheludkevich

doi:10.1016/j.jallcom.2021.160793

Evolution and performance of a MgO/HA/DCPD gradient coating on pure magnesium

Jiaping Han
, Bérengère Luthringer
, Shawei Tang
, Jin Hu^*
, Carsten Blawert
, Mikhail L. Zheludkevich

^*Corresponding author for this work

Panzhihua University
Helmholtz-Zentrum Hereon
Harbin Institute of Technology

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

21 Scopus citations

Abstract

A composite calcium phosphate (CaPh) coating containing calcium hydrogen phosphate dihydrate (DCPD) and hydroxyapatite (HA) is fabricated on plasma electrolytic oxidized (PEO) magnesium via electro-assisted deposition. During immersion in simulated body fluid, the soluble DCPD stimulates the precipitation of HA and remains the degradability of the system, while the stable HA reinforces the corrosion resistance along with PEO layer. The morphology, thickness and corrosion property of the coating evolve remarkably with the deposition time. Various growth patterns of DCPD are presented in different period which noticeably influences the interfacial combination, as well as corrosion resistance. The composite coating after 60 min deposition shows most compact morphology and stable interfacial combination, leading to excellent corrosion resistance, apatite formation ability and cell attachment behavior.

Original language	English
Article number	160793
Journal	Journal of Alloys and Compounds
Volume	883
DOIs	https://doi.org/10.1016/j.jallcom.2021.160793
State	Published - 25 Nov 2021
Externally published	Yes

Keywords

Calcium phosphate
Corrosion resistance
Degradability
Gradient coating
MgO

Access to Document

10.1016/j.jallcom.2021.160793

Cite this

@article{90aa680d3cea424ea21499d2cd15d06d,

title = "Evolution and performance of a MgO/HA/DCPD gradient coating on pure magnesium",

abstract = "A composite calcium phosphate (CaPh) coating containing calcium hydrogen phosphate dihydrate (DCPD) and hydroxyapatite (HA) is fabricated on plasma electrolytic oxidized (PEO) magnesium via electro-assisted deposition. During immersion in simulated body fluid, the soluble DCPD stimulates the precipitation of HA and remains the degradability of the system, while the stable HA reinforces the corrosion resistance along with PEO layer. The morphology, thickness and corrosion property of the coating evolve remarkably with the deposition time. Various growth patterns of DCPD are presented in different period which noticeably influences the interfacial combination, as well as corrosion resistance. The composite coating after 60 min deposition shows most compact morphology and stable interfacial combination, leading to excellent corrosion resistance, apatite formation ability and cell attachment behavior.",

keywords = "Calcium phosphate, Corrosion resistance, Degradability, Gradient coating, MgO",

author = "Jiaping Han and B{\'e}reng{\`e}re Luthringer and Shawei Tang and Jin Hu and Carsten Blawert and Zheludkevich, \{Mikhail L.\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = nov,

day = "25",

doi = "10.1016/j.jallcom.2021.160793",

language = "英语",

volume = "883",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Evolution and performance of a MgO/HA/DCPD gradient coating on pure magnesium

AU - Han, Jiaping

AU - Luthringer, Bérengère

AU - Tang, Shawei

AU - Hu, Jin

AU - Blawert, Carsten

AU - Zheludkevich, Mikhail L.

PY - 2021/11/25

Y1 - 2021/11/25

N2 - A composite calcium phosphate (CaPh) coating containing calcium hydrogen phosphate dihydrate (DCPD) and hydroxyapatite (HA) is fabricated on plasma electrolytic oxidized (PEO) magnesium via electro-assisted deposition. During immersion in simulated body fluid, the soluble DCPD stimulates the precipitation of HA and remains the degradability of the system, while the stable HA reinforces the corrosion resistance along with PEO layer. The morphology, thickness and corrosion property of the coating evolve remarkably with the deposition time. Various growth patterns of DCPD are presented in different period which noticeably influences the interfacial combination, as well as corrosion resistance. The composite coating after 60 min deposition shows most compact morphology and stable interfacial combination, leading to excellent corrosion resistance, apatite formation ability and cell attachment behavior.

AB - A composite calcium phosphate (CaPh) coating containing calcium hydrogen phosphate dihydrate (DCPD) and hydroxyapatite (HA) is fabricated on plasma electrolytic oxidized (PEO) magnesium via electro-assisted deposition. During immersion in simulated body fluid, the soluble DCPD stimulates the precipitation of HA and remains the degradability of the system, while the stable HA reinforces the corrosion resistance along with PEO layer. The morphology, thickness and corrosion property of the coating evolve remarkably with the deposition time. Various growth patterns of DCPD are presented in different period which noticeably influences the interfacial combination, as well as corrosion resistance. The composite coating after 60 min deposition shows most compact morphology and stable interfacial combination, leading to excellent corrosion resistance, apatite formation ability and cell attachment behavior.

KW - Calcium phosphate

KW - Corrosion resistance

KW - Degradability

KW - Gradient coating

KW - MgO

UR - https://www.scopus.com/pages/publications/85108158269

U2 - 10.1016/j.jallcom.2021.160793

DO - 10.1016/j.jallcom.2021.160793

M3 - 文章

AN - SCOPUS:85108158269

SN - 0925-8388

VL - 883

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 160793

ER -

Evolution and performance of a MgO/HA/DCPD gradient coating on pure magnesium

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this