Effect of Phase Components on Apatite Formation on the Surface of Ca-P Bioceramics
Dense hydroxyapatite (HA) and hydroxyapatite/tricalcium (HA/TCP) were immersed in Fast calcified solution (FCS) at 37°C in constant temperature culture box for 7 days. It was observed that the phase components of dense ceramics affected the composition, crystallinity and phase components of formed apatites on the surface of ceramics. It is a mixture of hydroxyapatite with a strong preferential crystallographic direction of 002 and octacalcium phosphate (OCP) on the surface of HA/TCP ceramics, whereas only an HA phase was detected on the surface of HA ceramics.
Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.
C. L. Deng et al., "Effect of Phase Components on Apatite Formation on the Surface of Ca-P Bioceramics ", Key Engineering Materials, Vols. 284-286, pp. 477-480, 2005