Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation

Ruizhen Xu; Guosong Wu; Xiongbo Yang; Tao Hu; Qiuyuan Lu; Paul K. Chu

doi:10.1016/j.matlet.2011.04.043

Author(s)

Ruizhen Xu
Guosong Wu
Xiongbo Yang
Tao Hu
Qiuyuan Lu

Detail(s)

Original language	English
Pages (from-to)	2171-2173
Journal / Publication	Materials Letters
Volume	65
Issue number	14
Publication status	Published - 31 Jul 2011

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2011.04.043 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-79955956238&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(fce187ae-5269-40d7-bd59-1b4805887570).html

Abstract

The surface stability of biodegradable magnesium is crucial to tissue growth on implants in the initial healing stage. Inspired by the design principle of biomedical stainless steels, we implant chromium as a passive element into pure magnesium to alter the surface biodegradation behavior. However, because Cr exists in the metallic state in the implanted layer to induce the galvanic effect, excessively fast degradation is observed. Ensuing implantation of oxygen produces a thicker surface oxidized layer composed of chromium oxide, which successfully retards the surface degradation of pure magnesium. The dual implantation process offers a promising means to improve the initial surface stability of Mg in the physiological environment. © 2011 Elsevier B.V. All rights reserved.

Research Area(s)

Biomaterials, Degradation, Ion implantation, Magnesium, Surface

Citation Format(s)

[ RIS ] [ BibTeX ]

Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation. / Xu, Ruizhen; Wu, Guosong; Yang, Xiongbo et al.
In: Materials Letters, Vol. 65, No. 14, 31.07.2011, p. 2171-2173.

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

Xu, R, Wu, G, Yang, X, Hu, T, Lu, Q & Chu, PK 2011, 'Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation', Materials Letters, vol. 65, no. 14, pp. 2171-2173. https://doi.org/10.1016/j.matlet.2011.04.043

Xu, R., Wu, G., Yang, X., Hu, T., Lu, Q., & Chu, P. K. (2011). Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation. Materials Letters, 65(14), 2171-2173. https://doi.org/10.1016/j.matlet.2011.04.043

Xu R, Wu G, Yang X, Hu T, Lu Q, Chu PK. Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation. Materials Letters. 2011 Jul 31;65(14):2171-2173. doi: 10.1016/j.matlet.2011.04.043

Xu, Ruizhen ; Wu, Guosong ; Yang, Xiongbo et al. / Controllable degradation of biomedical magnesium by chromium and oxygen dual ion implantation. In: Materials Letters. 2011 ; Vol. 65, No. 14. pp. 2171-2173.