Synthesis of nanosized-beta-tricalcium phosphate powders for hard tissue applications


Hazar A. B.

12th International Nanoscience & Nanotechnology Conference , Kocaeli, Türkiye, 3 - 05 Haziran 2016, ss.454

  • Basıldığı Şehir: Kocaeli
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayısı: ss.454

Özet

Nano-sized calcium deficient hydroxyapatite (CDHA) powders with an average particle size less than 100 nm were prepared by a coprecipitation method at low temperature. The initial Ca/P ratio was chosen the stoichiometric ratio of β-TCP (1.45-1.50). Additionally, lowering temperature and pH values accelerated HPO4 2− incorporation in the CDHA structure. HPO4 2− is considered as an essential source for β-TCP formation. Sulfate ion doping during the maturation period is proved to be an effective step to eliminate the pyrophosphate P2O7 2− phase. Pure phase β-TCP was obtained from CDHA at 900 and 1100 0C.