A series of hydroxyapatite/barium titanate (HA/BT) and tricalcium phosphate/barium titanate (TCP/BT) composites were prepared in various mixing ratios and sintered at temperatures between 500 and 1300 °C using the powder metallurgy method. Sintering was performed under different atmospheres to evaluate the effect of the atmosphere on the phase stability of the composites. BT phase showed slightly higher phase stability in TCP/BT composites than in HA/BT composites. BT with low concentration behaved as a stabilizer of α-TCP. A reaction between HA and BT occurred at about 900 °C yielding byproducts of CaTiO₃ and Ba₂TiO₄, at the expense of both HA and BT phases. CaTiO₃ and Ba₂TiO₄ phases associated with low BT concentrations were observed in the composites sintered at temperatures between 1100 and 1300 °C. The HA/BT composites having BT concentrations less than 95 wt.% did not show any measurable piezoelectric response. Composites with BT promoted osteoblast adhesion even better than pure HA and TCP.

以各种混合比例制备了一系列羟基磷灰石/钛酸钡（HA / BT）和磷酸三钙/钛酸钡（TCP / BT）复合材料，并使用粉末冶金法在500至1300°C的温度下烧结。在不同的气氛下进行烧结以评估气氛对复合物的相稳定性的影响。BT相在TCP / BT复合材料中显示出比HA / BT复合材料中更高的相稳定性。低浓度的BT充当α-TCP的稳定剂。HA和BT之间的反应在约900℃下发生，产生了CaTiO ₃和Ba ₂ TiO _4的副产物，同时牺牲了HA和BT相。CaTiO ₃和Ba ₂ TiO ₄在1100至1300°C的温度下烧结的复合材料中观察到与低BT浓度相关的相。BT浓度低于95重量％的HA / BT复合材料未显示任何可测量的压电响应。含BT的复合材料甚至比纯HA和TCP更好地促进成骨细胞粘附。