本文采用5％H2SO4和10％H3PO4电解液在钛合金表面通过微弧氧化方法制备多孔氧化膜.利用体外培养成骨细胞MG63的方法,评估了细胞在不同膜层上的早期附着能力.采用X射线衍射(XRD)、扫描电子显微镜(SEM)和能谱仪(EDS)研究了不同电解液中微弧氧化工艺的适用电压范围、膜层形貌、膜层的物相类型和膜层成分.研究结果表明:随着电压的增加,在两种电解液中的膜层孔洞尺寸逐渐变大,但孔洞数量减少;H2SO4中最佳氧化电压为120V,H3PO4中最佳电压为270V;H2SO4与H3PO4中制得的氧化膜在最佳电压下的平均孔隙直径分别为263.6nm和1.736μm.在H2SO4中的氧化膜层中出现锐钛矿和金红石相,H3PO4处理的氧化膜层中为无定型的氧化钛相.不同氧化膜内P与S的原子分数都随着电压升高而增大,最大原子分数分别为21.8％和4.13％.体外细胞培养过程中,在H2SO4电解液中不同电压下制得膜层上的细胞数量增长大于H3PO4,而在H3PO4中制得膜层上的细胞形态优于H2SO4.
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