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To solve the main problems of existing coarse grained copper (CG Cu) intrauterine devices (IUD)—namely burst release and a low transfer efficiency of the cupric ions during usage—ultra-fine grained copper (UFG Cu) and single crystal copper (SC Cu) have been investigated as potential substitutes. Their corrosion properties with CG Cu as a control have been studied in simulated uterine fluid (SUF) under...
To reduce the biocorrosion rate by surface modification, Mg–Ca alloy (1.4wt.% Ca content) was soaked in three alkaline solutions (Na 2 HPO 4 , Na 2 CO 3 and NaHCO 3 ) for 24h, respectively, and subsequently heat treated at 773K for 12h. Scanning electron microscopy and energy-dispersive spectroscopy results revealed that magnesium oxide layers with the thickness...
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