Abstract
Nanocomposite foams were prepared on addition of 63S bioactive glass (BG) to pure hydroxyapatite (HA), in proportion of 0, 25, 50, 75, and 100wt.%, and their mechanical properties and bioactivity were compared. The prepared nanocomposite foams have a grain size in the range 24–38nm and pore size in the range 100–400μm. The compressive strength and elastic modulus increased with increasing the amount of BG addition up to 25wt.% and then decreased by more addition of BG. The maximum values of compressive strength and elastic modulus were found to be about 2.78MPa and 219MPa, respectively. The mean values of total and interconnected porosity were calculated in the range 84–88% and 57–76%, respectively. The obtained composite foams have chemical composition similar to the mineral phase of bone and by changing the ratio of HA/BG it can reach the appropriate bioactivity and biodegradability level needed for different biomedical applications.
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