采用磷酸缓冲溶液浸泡法在37℃制备了碳酸根型磷灰石,借助XRD,FTIR,SEM,DSC-TG等分析手段研究了磷灰石的形貌、结构、热稳定性以及形成机理.结果表明,碳酸钙浸泡到磷酸缓冲溶液后,碳酸钙表面部分溶解,然后沉积上一层具有低结晶度的片状磷灰石;磷灰石的转化率,随磷酸缓冲溶液浸泡时间的延长而提高,但转化速率随之下降:磷灰石降低了残留碳酸钙的热稳定性,DSC的吸热峰从810℃迁移到755℃.预计制备的磷灰石可应用于骨支架材料或填充材料.
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