采用溶胶-凝胶法在单晶硅表面制备了磷灰石(apatite,AP)涂层.借助SEM、EDS、XRD研究了单晶硅表面AP涂层的形貌结构与成分特征,通过模拟体液(simulated body fluid,SBF)浸泡实验研究了硅基AP涂层的体外诱导性能.研究结果表明,在500℃保温2h即可使sol-gel层转变为较致密的AP涂层,700与800℃分别保温2h得到的硅基AP涂层晶体长大且出现间隙,涂层的结晶性随热处理温度升高而增加,在800℃处理未出现AP的分解;SBF中浸泡1周后,AP涂层未出现剥离单晶硅的现象,且能够诱导骨状磷灰石新沉积层的形成,体现出较好的体外诱导性能.
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