Dip coated magnesium-substituted hydroxyapatite coatings on magnesium alloy for biomedical applications

摘要

Magnesium-substituted hydroxyapatite coatings have been deposited on magnesium alloy for biomedical applications by sol-gel technology. The Ca_(10-xg))Mg)x(PO_4)6(OH)_2 ( Mg-HA ) coatings obtained, with magnesium contents up to x = 1.5, The morphologies of coatings are dense and compact and with visible small cracks dense and compact and with visible cracks. The results of Hydrogen (H2) evolution testing in Hank's solution show that magnesium-substituted hydroxyapatite coatings can improve the corrosion resistance of magnesium alloy.