Core-shell Mg66Zn30Ca4 bulk metallic glasses composites reinforced by Fe with high strength and controllable degradation
Source abstract
Abstract
Abstract Mg–Zn–Ca bulk metallic glasses have emerged as a new biodegradable metal due to the excellent mechanical properties and good biocompatibility. In this study, we prepared nano Fe particles reinforced Mg66Zn30Ca4 bulk metallic glass composites via spark plasma sintering. Nano Fe particles covered on the surface of Mg66Zn30Ca4 glassy powder and formed a core-shell microstructure. We investigated the influence of different contents of Fe on strength and electrochemical behavior of the sintered composites. The strength increased from 574 MPa to 765 MPa with different contents of Fe. Moreover, with the addition Fe, the standard potential of Mg–Zn–Ca bulk metallic glasses improved 0.10 V and 0.14 V in Hank's and Saliva solutions, respectively. Thus, both of strength and corrosion resistance have significantly enhanced with the addition of Fe. In vitro cells experiment also proved that the materials are non-toxic, and it's beneficial to cells proliferation by adding Fe nanoparticles. The Fe@Mg66Zn30Ca4 BMG composites with high strength and controllable degradation can be considered a promising candidate for degradable implant materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Layered Double Hydroxides Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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