Rapid degradation of biomedical magnesium induced by zinc ion implantation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Guosong Wu
  • Li Gong
  • Kai Feng
  • Shuilin Wu
  • Ying Zhao

Detail(s)

Original languageEnglish
Pages (from-to)661-663
Journal / PublicationMaterials Letters
Volume65
Issue number4
Publication statusPublished - 28 Feb 2011

Abstract

The degradation rate is important to biodegradable magnesium materials. In this study, Zn is implanted using a cathodic arc source into pure magnesium at an accelerating voltage of 35 kV. The nominal ion implant fluence is 2.5 × 1017 ions cm-2. After Zn implantation, the degradation rate in simulated body fluids is increased significantly. It is postulated that because Zn exists in the metallic state in the implanted layer, the galvanic effect between the Zn rich surface region and magnesium matrix induces the observed accelerated degradation. © 2010 Elsevier B.V.

Research Area(s)

  • Biomaterials, Degradation, Ion implantation, Magnesium, Surface

Citation Format(s)

Rapid degradation of biomedical magnesium induced by zinc ion implantation. / Wu, Guosong; Gong, Li; Feng, Kai; Wu, Shuilin; Zhao, Ying; Chu, Paul K.

In: Materials Letters, Vol. 65, No. 4, 28.02.2011, p. 661-663.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review