Magnesium-Based Foam Biomaterials and their Related Properties

Abstract:

The magnesium-based foam biomaterials were prepared by melt foaming process, where Mg-Ca alloy was used as matrix material, hydroxyapatite (HA) as tackifier, MgCO₃ as foaming agent. The magnesium-based foam biomaterials with uniform structure were used for testing to investigate their compressive and biodegradable behaviors. The biodegradable property of the magnesium-based foam was mainly characterized by microstructure observation and hydrogen evolution. The results showed that the porosity of the magnesium-based foam has a more important impact on yield stress and plateau stress of compressive curves compared to HA content or its size. Corrosion rate of the magnesium-based foams decreases with increasing HA addition. Meanwhile, the porosity of the magnesium-based foams also has a very obvious effect on hydrogen evolution, i.e., the hydrogen evolution rate increases with decreasing the porosity of magnesium-based foams.

• Periodical: Materials Science Forum (Volume 933)
• Pages: 282-290
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.933.282
• Online since: October 2018
• Authors: Wen Zhan Huang, Hong Jie Luo*, Li Zhang, Yong Liang Mu, Xin Cui
• Keywords: Biodegradable Behavior, Biomaterials, Compressive Curve, HA Particles, Magnesium-Based Foams

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