Rapid degradation of biomedical magnesium induced by zinc ion implantation

Guosong Wu; Li Gong; Kai Feng; Shuilin Wu; Ying Zhao; Paul K. Chu

doi:10.1016/j.matlet.2010.11.059

Rapid degradation of biomedical magnesium induced by zinc ion implantation

Guosong Wu
, Li Gong
, Kai Feng
, Shuilin Wu
, Ying Zhao
, Paul K. Chu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

62 Citations (Scopus)

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.

Original language	English
Pages (from-to)	661-663
Journal	Materials Letters
Volume	65
Issue number	4
Online published	29 Nov 2010
DOIs	https://doi.org/10.1016/j.matlet.2010.11.059
Publication status	Published - 28 Feb 2011

Research Keywords

Biomaterials
Degradation
Ion implantation
Magnesium
Surface

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title = "Rapid degradation of biomedical magnesium induced by zinc ion implantation",

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. {\textcopyright} 2010 Elsevier B.V.",

keywords = "Biomaterials, Degradation, Ion implantation, Magnesium, Surface",

author = "Guosong Wu and Li Gong and Kai Feng and Shuilin Wu and Ying Zhao and Chu, \{Paul K.\}",

year = "2011",

month = feb,

day = "28",

doi = "10.1016/j.matlet.2010.11.059",

language = "English",

volume = "65",

pages = "661--663",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Rapid degradation of biomedical magnesium induced by zinc ion implantation

AU - Wu, Guosong

AU - Gong, Li

AU - Feng, Kai

AU - Wu, Shuilin

AU - Zhao, Ying

AU - Chu, Paul K.

PY - 2011/2/28

Y1 - 2011/2/28

N2 - 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.

AB - 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.

KW - Biomaterials

KW - Degradation

KW - Ion implantation

KW - Magnesium

KW - Surface

UR - https://www.scopus.com/pages/publications/78650461224

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-78650461224&origin=recordpage

U2 - 10.1016/j.matlet.2010.11.059

DO - 10.1016/j.matlet.2010.11.059

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 65

SP - 661

EP - 663

JO - Materials Letters

JF - Materials Letters

IS - 4

ER -

Rapid degradation of biomedical magnesium induced by zinc ion implantation

Abstract

Research Keywords

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