Preparation of Submicron Biphasic α-TCP/HA Powders
An amorphous calcium phosphate precursor way was utilized to prepare submicron biphasic α-tricalcium phosphate (TCP)/hydroxyapatite (HA) powders. The results showed that the addition of carbonate during the precipitation reaction could eventually lead to the formation of HA phase in the resulting powders, and even determine the relative content of HA to the range from 0 percent (pure α-TCP) to 100 percent (pure HA). Similarly, the particle size of the resulting biphasic powders depended on the carbonate content, ranging from 100nm to 500nm. The biphasic Ca phosphate with tailored α-TCP/HA ratio could be a new combination of calcium phosphate for promoting early bone formation.
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
L. L. Pan et al., "Preparation of Submicron Biphasic α-TCP/HA Powders", Key Engineering Materials, Vols. 309-311, pp. 219-222, 2006