含锶羟基磷灰石的骨缺损修复效果优于羟基磷灰石.采用湿法合成含锶羟基磷灰石和羟基磷灰石,分别在300℃,600℃,900℃热处理.用RigakuD/max-3C型X射线衍射仪(XRD),PE 1760-X傅氏红外光谱仪(IR)和X射线散射能谱(EDX)分析粉样和片样的成分,用S-2700扫描电镜(SEM)观察形貌.结果表明:锶使羟基磷灰石的晶面间距变大,热稳定性变差,900℃热处理分解出β-Ca3(PO4)2和CaO;含锶羟基磷灰石的OH-红外吸收峰弱于羟基磷灰石,但两者的OH-和PO43-峰位置接近;含锶羟基磷灰石在模拟体液中的溶解-再结晶过程强于羟基磷灰石.
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