本实验所用涂层为磷硅酸盐玻璃系统,涂层以Sol-gel工艺制得.对该工艺制得的涂层于不同温度(700℃、800℃、900℃)下烧成后的各项性能进行比较,对涂层断面进行分析,以确定不同烧成温度下涂层-基体的界面状态.结果表明800℃烧成的涂层具有最好的综合性能:晶型简单;表面虽有裂纹存在,但基体并未裸露,实现了有效涂层的目的;层间扩散明显,涂层-基体界面处有良好过渡;与基体的结合强度高(2层为10.50MPa,4层为7.11MPa);在模拟体液(SBF)中浸泡30天后表面有大量羟基磷灰石(HA)生成,表明其具有良好的生物活性.
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