The formation mechanism and biocorrosion property of CaSiO 3/CaHPO4 · 2H2O composite conversion coating on the extruded Mg-Zn-Ca alloy for bone implant application·

Zunjie Wei; Hui Du; Erlin Zhang

doi:10.1002/sia.3625

The formation mechanism and biocorrosion property of CaSiO ₃/CaHPO₄ · 2H₂O composite conversion coating on the extruded Mg-Zn-Ca alloy for bone implant application·

Zunjie Wei^*
, Hui Du
, Erlin Zhang

^*Corresponding author for this work

Harbin Institute of Technology
Jiamusi University

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

6 Scopus citations

Abstract

In this work, a calcium silicate and calcium phosphate (CaSiO ₃/CaHPO₄ · 2H₂O) composite coating was applied by a chemical reaction to an extruded Mg-Zn-Ca magnesium alloy. SEM observation showed that a flat and sand-like conversion coating was formed. X-ray diffractometer (XRD) analysis indicated that the conversion coating was composed of CaHPO₄ · 2H₂O and a little amount of CaSiO₃. The formation mechanism of CaSiO₃/CaHPO ₄ · 2H₂O composite conversion coatings was discussed. The electrochemical polarization tests showed that the conversion coating markedly improved the biocorrosion resistance of Mg-Zn-Ca alloy in Hank's solution.

Original language	English
Pages (from-to)	791-794
Number of pages	4
Journal	Surface and Interface Analysis
Volume	43
Issue number	4
DOIs	https://doi.org/10.1002/sia.3625
State	Published - Apr 2011
Externally published	Yes

Keywords

Mg-Zn-Ca alloy
biocorrosion resistance
conversion coating

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10.1002/sia.3625

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title = "The formation mechanism and biocorrosion property of CaSiO 3/CaHPO4 · 2H2O composite conversion coating on the extruded Mg-Zn-Ca alloy for bone implant application·",

abstract = "In this work, a calcium silicate and calcium phosphate (CaSiO 3/CaHPO4 · 2H2O) composite coating was applied by a chemical reaction to an extruded Mg-Zn-Ca magnesium alloy. SEM observation showed that a flat and sand-like conversion coating was formed. X-ray diffractometer (XRD) analysis indicated that the conversion coating was composed of CaHPO4 · 2H2O and a little amount of CaSiO3. The formation mechanism of CaSiO3/CaHPO 4 · 2H2O composite conversion coatings was discussed. The electrochemical polarization tests showed that the conversion coating markedly improved the biocorrosion resistance of Mg-Zn-Ca alloy in Hank's solution.",

keywords = "Mg-Zn-Ca alloy, biocorrosion resistance, conversion coating",

author = "Zunjie Wei and Hui Du and Erlin Zhang",

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T1 - The formation mechanism and biocorrosion property of CaSiO 3/CaHPO4 · 2H2O composite conversion coating on the extruded Mg-Zn-Ca alloy for bone implant application·

AU - Wei, Zunjie

AU - Du, Hui

AU - Zhang, Erlin

PY - 2011/4

Y1 - 2011/4

N2 - In this work, a calcium silicate and calcium phosphate (CaSiO 3/CaHPO4 · 2H2O) composite coating was applied by a chemical reaction to an extruded Mg-Zn-Ca magnesium alloy. SEM observation showed that a flat and sand-like conversion coating was formed. X-ray diffractometer (XRD) analysis indicated that the conversion coating was composed of CaHPO4 · 2H2O and a little amount of CaSiO3. The formation mechanism of CaSiO3/CaHPO 4 · 2H2O composite conversion coatings was discussed. The electrochemical polarization tests showed that the conversion coating markedly improved the biocorrosion resistance of Mg-Zn-Ca alloy in Hank's solution.

AB - In this work, a calcium silicate and calcium phosphate (CaSiO 3/CaHPO4 · 2H2O) composite coating was applied by a chemical reaction to an extruded Mg-Zn-Ca magnesium alloy. SEM observation showed that a flat and sand-like conversion coating was formed. X-ray diffractometer (XRD) analysis indicated that the conversion coating was composed of CaHPO4 · 2H2O and a little amount of CaSiO3. The formation mechanism of CaSiO3/CaHPO 4 · 2H2O composite conversion coatings was discussed. The electrochemical polarization tests showed that the conversion coating markedly improved the biocorrosion resistance of Mg-Zn-Ca alloy in Hank's solution.

KW - Mg-Zn-Ca alloy

KW - biocorrosion resistance

KW - conversion coating

UR - https://www.scopus.com/pages/publications/79952564725

U2 - 10.1002/sia.3625

DO - 10.1002/sia.3625

M3 - 文章

AN - SCOPUS:79952564725

SN - 0142-2421

VL - 43

SP - 791

EP - 794

JO - Surface and Interface Analysis

JF - Surface and Interface Analysis

IS - 4

ER -

The formation mechanism and biocorrosion property of CaSiO ₃/CaHPO₄ · 2H₂O composite conversion coating on the extruded Mg-Zn-Ca alloy for bone implant application·

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