Identification of the mechanisms governing modifications of the wettability characteristics of a magnesia partially stabilized zirconia bioceramic following CO2 laser treatment

Liang Hao, J. Lawrence

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The mechanisms responsible for modifying the wettability characteristics of a magnesia partially stabilized zirconia (MgO-PSZ) bioceramic material after CO2 laser treatment have been elucidated. Changes in the contact angle, θ, which characterizes the wettability characteristics of the MgO-PSZ, were attributed primarily to: modifications to the surface roughness of the material, the incorporation of oxygen at the surface, and the increase in the polar component of the surface energy, γsvp. However, the degree of influence exerted by each mechanism was found to differ markedly. Isolation of each of these mechanisms permitted the magnitude of their influence to be qualitatively determined. Surface energy, by way of microstructural changes, was found to be by far the most predominant element governing the wetting characteristics of the MgO-PSZ. To a much lesser extent, incorporation of oxygen at surface, was also seen to influence the change in the wettability characteristics of the MgO-PSZ, while surface roughness was found to play a minor role in inducing changes in the wettability characteristics.

Original languageEnglish
Pages (from-to)252-257
Number of pages6
JournalJournal of Laser Applications
Volume16
Issue number4
DOIs
Publication statusPublished - 1 Dec 2004
Externally publishedYes

Fingerprint

Magnesium Oxide
Bioceramics
Magnesia
wettability
zirconium oxides
Zirconia
Wetting
Lasers
lasers
Interfacial energy
surface energy
surface roughness
Surface roughness
Oxygen
oxygen
wetting
Contact angle
isolation
zirconium oxide

Keywords

  • CO laser
  • Magnesia partially stabilized zirconia (MgO-PSZ)
  • Wettability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Instrumentation

Cite this

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title = "Identification of the mechanisms governing modifications of the wettability characteristics of a magnesia partially stabilized zirconia bioceramic following CO2 laser treatment",
abstract = "The mechanisms responsible for modifying the wettability characteristics of a magnesia partially stabilized zirconia (MgO-PSZ) bioceramic material after CO2 laser treatment have been elucidated. Changes in the contact angle, θ, which characterizes the wettability characteristics of the MgO-PSZ, were attributed primarily to: modifications to the surface roughness of the material, the incorporation of oxygen at the surface, and the increase in the polar component of the surface energy, γsvp. However, the degree of influence exerted by each mechanism was found to differ markedly. Isolation of each of these mechanisms permitted the magnitude of their influence to be qualitatively determined. Surface energy, by way of microstructural changes, was found to be by far the most predominant element governing the wetting characteristics of the MgO-PSZ. To a much lesser extent, incorporation of oxygen at surface, was also seen to influence the change in the wettability characteristics of the MgO-PSZ, while surface roughness was found to play a minor role in inducing changes in the wettability characteristics.",
keywords = "CO laser, Magnesia partially stabilized zirconia (MgO-PSZ), Wettability",
author = "Liang Hao and J. Lawrence",
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T1 - Identification of the mechanisms governing modifications of the wettability characteristics of a magnesia partially stabilized zirconia bioceramic following CO2 laser treatment

AU - Hao, Liang

AU - Lawrence, J.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - The mechanisms responsible for modifying the wettability characteristics of a magnesia partially stabilized zirconia (MgO-PSZ) bioceramic material after CO2 laser treatment have been elucidated. Changes in the contact angle, θ, which characterizes the wettability characteristics of the MgO-PSZ, were attributed primarily to: modifications to the surface roughness of the material, the incorporation of oxygen at the surface, and the increase in the polar component of the surface energy, γsvp. However, the degree of influence exerted by each mechanism was found to differ markedly. Isolation of each of these mechanisms permitted the magnitude of their influence to be qualitatively determined. Surface energy, by way of microstructural changes, was found to be by far the most predominant element governing the wetting characteristics of the MgO-PSZ. To a much lesser extent, incorporation of oxygen at surface, was also seen to influence the change in the wettability characteristics of the MgO-PSZ, while surface roughness was found to play a minor role in inducing changes in the wettability characteristics.

AB - The mechanisms responsible for modifying the wettability characteristics of a magnesia partially stabilized zirconia (MgO-PSZ) bioceramic material after CO2 laser treatment have been elucidated. Changes in the contact angle, θ, which characterizes the wettability characteristics of the MgO-PSZ, were attributed primarily to: modifications to the surface roughness of the material, the incorporation of oxygen at the surface, and the increase in the polar component of the surface energy, γsvp. However, the degree of influence exerted by each mechanism was found to differ markedly. Isolation of each of these mechanisms permitted the magnitude of their influence to be qualitatively determined. Surface energy, by way of microstructural changes, was found to be by far the most predominant element governing the wetting characteristics of the MgO-PSZ. To a much lesser extent, incorporation of oxygen at surface, was also seen to influence the change in the wettability characteristics of the MgO-PSZ, while surface roughness was found to play a minor role in inducing changes in the wettability characteristics.

KW - CO laser

KW - Magnesia partially stabilized zirconia (MgO-PSZ)

KW - Wettability

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