PHASE INTERACTION IN HYDROXYLAPATITE/CATIO_3 COMPOSITE

摘要

Hydroxylapatite composites with calcium titanium oxide were prepared with pressureless air sintering for 2 hours at different temperatures between 500℃ and 1300℃. The interaction between the phases was monitored with XRD analysis. At sintering temperatures near1100℃, Slight decomposition of hydroxylapatite and formation of tricalcium phosphate was observed. However, sintering at the temperature higher than 1100℃, tricalcium phosphate disappeared most probably due to the incorporation of CaTiO_3 in the hydroxylapatite structure.