Structure and bioactivity of micro-arc oxidized zirconia films

Yuanyuan Yan; Yong Han

doi:10.1016/j.surfcoat.2006.07.058

Structure and bioactivity of micro-arc oxidized zirconia films

Yuanyuan Yan
, Yong Han

School of Materials Science and Engineering

Xi'an Jiaotong University

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

78 Scopus citations

Abstract

Zirconia films have been prepared by micro-arc oxidation (MAO) of zirconium in an aqueous solution using a pulse power supply. Surface morphology, element composition, phase components, bond strength and bioactivity of the films are investigated as a function of the applied voltage in the range of 350-500 V. The obtained results show that the MAO-formed films are porous, and composed of CaO partially stabilized zirconia (e.g. Ca-PSZ with a composition of Ca_0.15Zr_0.85O_1.85) and a small amount of monoclinic ZrO₂. The Ca-PSZ content and pore sizes of the films tend to increase with the increase of the applied voltage. The bond strengths, evaluated by adhesion-tension tests, are 41.9 ± 1.6 MPa for the film formed at 500 V and more than 57.4 ± 2.1 MPa for the films formed at 350-450 V. After immersion in the modified SBF solution for 3 days, the zirconia films are fully covered by apatite layers, exhibiting good bioactivity.

Original language	English
Pages (from-to)	5692-5695
Number of pages	4
Journal	Surface and Coatings Technology
Volume	201
Issue number	9-11 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.surfcoat.2006.07.058
State	Published - 26 Feb 2007

Keywords

Bioactivity
Micro-arc oxidation
Zirconia film

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10.1016/j.surfcoat.2006.07.058

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title = "Structure and bioactivity of micro-arc oxidized zirconia films",

abstract = "Zirconia films have been prepared by micro-arc oxidation (MAO) of zirconium in an aqueous solution using a pulse power supply. Surface morphology, element composition, phase components, bond strength and bioactivity of the films are investigated as a function of the applied voltage in the range of 350-500 V. The obtained results show that the MAO-formed films are porous, and composed of CaO partially stabilized zirconia (e.g. Ca-PSZ with a composition of Ca0.15Zr0.85O1.85) and a small amount of monoclinic ZrO2. The Ca-PSZ content and pore sizes of the films tend to increase with the increase of the applied voltage. The bond strengths, evaluated by adhesion-tension tests, are 41.9 ± 1.6 MPa for the film formed at 500 V and more than 57.4 ± 2.1 MPa for the films formed at 350-450 V. After immersion in the modified SBF solution for 3 days, the zirconia films are fully covered by apatite layers, exhibiting good bioactivity.",

keywords = "Bioactivity, Micro-arc oxidation, Zirconia film",

author = "Yuanyuan Yan and Yong Han",

year = "2007",

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doi = "10.1016/j.surfcoat.2006.07.058",

language = "英语",

volume = "201",

pages = "5692--5695",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

number = "9-11 SPEC. ISS.",

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TY - JOUR

T1 - Structure and bioactivity of micro-arc oxidized zirconia films

AU - Yan, Yuanyuan

AU - Han, Yong

PY - 2007/2/26

Y1 - 2007/2/26

N2 - Zirconia films have been prepared by micro-arc oxidation (MAO) of zirconium in an aqueous solution using a pulse power supply. Surface morphology, element composition, phase components, bond strength and bioactivity of the films are investigated as a function of the applied voltage in the range of 350-500 V. The obtained results show that the MAO-formed films are porous, and composed of CaO partially stabilized zirconia (e.g. Ca-PSZ with a composition of Ca0.15Zr0.85O1.85) and a small amount of monoclinic ZrO2. The Ca-PSZ content and pore sizes of the films tend to increase with the increase of the applied voltage. The bond strengths, evaluated by adhesion-tension tests, are 41.9 ± 1.6 MPa for the film formed at 500 V and more than 57.4 ± 2.1 MPa for the films formed at 350-450 V. After immersion in the modified SBF solution for 3 days, the zirconia films are fully covered by apatite layers, exhibiting good bioactivity.

AB - Zirconia films have been prepared by micro-arc oxidation (MAO) of zirconium in an aqueous solution using a pulse power supply. Surface morphology, element composition, phase components, bond strength and bioactivity of the films are investigated as a function of the applied voltage in the range of 350-500 V. The obtained results show that the MAO-formed films are porous, and composed of CaO partially stabilized zirconia (e.g. Ca-PSZ with a composition of Ca0.15Zr0.85O1.85) and a small amount of monoclinic ZrO2. The Ca-PSZ content and pore sizes of the films tend to increase with the increase of the applied voltage. The bond strengths, evaluated by adhesion-tension tests, are 41.9 ± 1.6 MPa for the film formed at 500 V and more than 57.4 ± 2.1 MPa for the films formed at 350-450 V. After immersion in the modified SBF solution for 3 days, the zirconia films are fully covered by apatite layers, exhibiting good bioactivity.

KW - Bioactivity

KW - Micro-arc oxidation

KW - Zirconia film

UR - https://www.scopus.com/pages/publications/33846528442

U2 - 10.1016/j.surfcoat.2006.07.058

DO - 10.1016/j.surfcoat.2006.07.058

M3 - 文章

AN - SCOPUS:33846528442

SN - 0257-8972

VL - 201

SP - 5692

EP - 5695

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 9-11 SPEC. ISS.

ER -

Structure and bioactivity of micro-arc oxidized zirconia films

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Keywords

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