Abstract
Magnesium has emerged as promising materials in biomaterials research due to its good mechanical and physical properties closer to human bones. However, magnesium has poor corrosion resistance to chloride ions that exist in human blood plasma thus preventing its application in biomedical. The addition of zinc and bioglass can reduce magnesium corrosion rate. In this work, the effect of different solution media (Simulated Body Fluid and Phosphate Buffered Saline) to the corrosion behavior of Mg-Zn/bioglass (45S5) composites was investigated. The composites of Mg-3Zn added with 5, 10, 15, 20, 15 and 30 wt. % bioglass were fabricated by powder metallurgy. The composites were prepared by mixing at 140 rpm for 1 hour, pressing at 500 MPa and sintering in an argon environment at a temperature of 450°C for 3 hours. Sintered samples were immersed in Simulated Body Fluid (SBF) and Phosphate Buffered Saline (PBS) in order to investigate the corrosion behavior. Samples mass loss was determined after 3 days of immers...
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