Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium

G. Y. Liu; J. Hu; Z. K. Ding; C. Wang

doi:10.1016/j.matchemphys.2011.08.043

Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium

G. Y. Liu
, J. Hu^*
, Z. K. Ding
, C. Wang

^*Corresponding author for this work

Harbin Institute of Technology

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

40 Scopus citations

Abstract

A calcium phosphate coating was prepared on the surface of micro-arc oxidized magnesium by a chemical method. The microstructure evolution of the coating was characterized by X-ray diffraction, Fourier-transformed infrared spectroscopy and scanning electron microscopy. The results showed that Ca ₁₀(PO₄)₆(OH)₂ (HA) was firstly formed on the surface of micro-arc oxidized magnesium, followed by flake-like CaHPO₄·2H₂O (DCPD). The solution pH and Ca ²⁺ concentration had intense influence on the formation of calcium phosphate coating. Acidic Ca²⁺ enrichment solution was favourable for HA formation on the surface of micro-arc oxidized magnesium. High concentration of HPO₄^2- and low concentration of Ca²⁺ in acidic solution improved the formation of DCPD coating.

Original language	English
Pages (from-to)	1118-1124
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	130
Issue number	3
DOIs	https://doi.org/10.1016/j.matchemphys.2011.08.043
State	Published - 1 Nov 2011
Externally published	Yes

Keywords

Biomaterials
Coating
Crystal growth
Microstructure

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10.1016/j.matchemphys.2011.08.043

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title = "Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium",

abstract = "A calcium phosphate coating was prepared on the surface of micro-arc oxidized magnesium by a chemical method. The microstructure evolution of the coating was characterized by X-ray diffraction, Fourier-transformed infrared spectroscopy and scanning electron microscopy. The results showed that Ca 10(PO4)6(OH)2 (HA) was firstly formed on the surface of micro-arc oxidized magnesium, followed by flake-like CaHPO4·2H2O (DCPD). The solution pH and Ca 2+ concentration had intense influence on the formation of calcium phosphate coating. Acidic Ca2+ enrichment solution was favourable for HA formation on the surface of micro-arc oxidized magnesium. High concentration of HPO42- and low concentration of Ca2+ in acidic solution improved the formation of DCPD coating.",

keywords = "Biomaterials, Coating, Crystal growth, Microstructure",

author = "Liu, \{G. Y.\} and J. Hu and Ding, \{Z. K.\} and C. Wang",

year = "2011",

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doi = "10.1016/j.matchemphys.2011.08.043",

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TY - JOUR

T1 - Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium

AU - Liu, G. Y.

AU - Hu, J.

AU - Ding, Z. K.

AU - Wang, C.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - A calcium phosphate coating was prepared on the surface of micro-arc oxidized magnesium by a chemical method. The microstructure evolution of the coating was characterized by X-ray diffraction, Fourier-transformed infrared spectroscopy and scanning electron microscopy. The results showed that Ca 10(PO4)6(OH)2 (HA) was firstly formed on the surface of micro-arc oxidized magnesium, followed by flake-like CaHPO4·2H2O (DCPD). The solution pH and Ca 2+ concentration had intense influence on the formation of calcium phosphate coating. Acidic Ca2+ enrichment solution was favourable for HA formation on the surface of micro-arc oxidized magnesium. High concentration of HPO42- and low concentration of Ca2+ in acidic solution improved the formation of DCPD coating.

AB - A calcium phosphate coating was prepared on the surface of micro-arc oxidized magnesium by a chemical method. The microstructure evolution of the coating was characterized by X-ray diffraction, Fourier-transformed infrared spectroscopy and scanning electron microscopy. The results showed that Ca 10(PO4)6(OH)2 (HA) was firstly formed on the surface of micro-arc oxidized magnesium, followed by flake-like CaHPO4·2H2O (DCPD). The solution pH and Ca 2+ concentration had intense influence on the formation of calcium phosphate coating. Acidic Ca2+ enrichment solution was favourable for HA formation on the surface of micro-arc oxidized magnesium. High concentration of HPO42- and low concentration of Ca2+ in acidic solution improved the formation of DCPD coating.

KW - Biomaterials

KW - Coating

KW - Crystal growth

KW - Microstructure

UR - https://www.scopus.com/pages/publications/80054030861

U2 - 10.1016/j.matchemphys.2011.08.043

DO - 10.1016/j.matchemphys.2011.08.043

M3 - 文章

AN - SCOPUS:80054030861

SN - 0254-0584

VL - 130

SP - 1118

EP - 1124

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 3

ER -

Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium

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Keywords

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