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Open AccessFeature PaperArticle

Zn-Mg Biodegradable Composite: Novel Material with Tailored Mechanical and Corrosion Properties

1
Department of Metals and Corrosion Engineering, Faculty of Chemical Technology, University of Chemistry and Technology, Prague Technická 5, Dejvice, 166 28 Prague 6, Czech Republic
2
Department of Functional Materials, Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic
*
Author to whom correspondence should be addressed.
Materials 2019, 12(23), 3930; https://doi.org/10.3390/ma12233930
Received: 7 November 2019 / Revised: 22 November 2019 / Accepted: 24 November 2019 / Published: 27 November 2019
(This article belongs to the Special Issue Advanced Powder Metallurgy Technologies)
Zinc-based alloys represent one of the most highly developed areas regarding biodegradable materials. Despite this, some general deficiencies such as cytotoxicity and poor mechanical properties (especially elongation), are not properly solved. In this work, a Zn-5Mg (5 wt.% Mg) composite material with tailored mechanical and superior corrosion properties is prepared by powder metallurgy techniques. Pure Zn and Mg are mixed and subsequently compacted by extrusion at 200 °C and an extrusion ratio of 10. The final product possesses appropriate mechanical properties (tensile yield strength = 148 MPa, ultimate tensile strength = 183 MPa, and elongation = 16%) and decreased by four times the release of Zn in the initial stage of degradation compared to pure Zn, which can highly decrease cytotoxicity effects and therefore positively affect the initial stage of the healing process. View Full-Text
Keywords: biomaterials; metallic composites; powder technology; zinc biomaterials; metallic composites; powder technology; zinc
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Kubásek, J.; Dvorský, D.; Čapek, J.; Pinc, J.; Vojtěch, D. Zn-Mg Biodegradable Composite: Novel Material with Tailored Mechanical and Corrosion Properties. Materials 2019, 12, 3930.

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