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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/210074
- Biodegradable Mg-Ca and Mg-Ca-Y alloys for regenerative medicine
- Li, Yuncang; Li, Meiheng; Hu, Wangyu; Hodgson, Peter; Wen, Cui'e
- In this study, Mg-xCa (x = 0.5, 1.0, 2.0, 5.0, 10.0, 15.0 and 20.0 %, wt.%, hereafter) and Mg-1Ca-1Y alloys were investigated as new biodegradable bone implant materials. The compressive strength, ultimate strength and hardness of the Mg-Ca alloys increased, whilst the corrosion rate and biocompatibility decreased, with the increase of the Ca content in the Mg-Ca alloys; higher Ca content caused the Mg-Ca alloy to become brittle. Solutions of simulated body fluid (SBF) and modified minimum essential media (MMEM) with the immersion of Mg-xCa and Mg-1Ca-1Y alloys showed strong alkalisation. The yttrium addition to the Mg-Ca alloys does not improve the corrosion resistance of the Mg-1Ca-1Y alloy as expected compared to the Mg-1Ca alloy. It is suggested that Mg-Ca alloys with Ca additions less than 1.0 wt.% exhibited good biocompatibility and low corrosion rate.
- Publication type
- Journal article
- Materials Science Forum: PRICM7: selected papers from the Seventh Pacific Rim International Conference on Advanced Materials and Processing (PRICM7), Cairns, Queensland, Australia, 02-06 August 2010 / Jian-Feng Nie and Allan Morton (eds.), Vol. 654-656, pp. 2192-2195
- Publication year
- Biodegradable materials; Cytotoxicity; Magnesium alloys; Mechanical properties
- Trans Tech Publications
- 0255-5476 (series ISSN)
- 9780878492558, 0878492550
- Publisher URL
- Copyright © (2010) Trans Tech Publications, Switzerland.
- Peer reviewed