采用射频磁控溅射法制备了HA(+ZrO2+Y2O3)/Ti6Al4V生物复合涂层.借助于XRD、SEM、FTIR和AFM等对溅射涂层的相组成、微观形貌和界面结合进行了研究,并以模拟体液试验探讨了涂层的生物活性.实验结果表明:磁控溅射的复合涂层呈非晶态,经过退火处理,可以使其转化为晶态;复合涂层的微观表面凹凸不平,并呈现网状结构和较多的孔隙,其孔隙直径约为0.5~2.0μm,孔隙面积占涂层表面积的30%~40%;HA(+ZrO2+Y2O3)/Ti6Al4V复合涂层的界面结合强度随(ZrO2+Y2O3)复合颗粒含量的增大和溅射功率的提高而增强,最高可达59.6MPa.复合涂层在模拟体液中浸泡一段时间后,表面覆盖一层新生物质-含有CO32-的类骨磷灰石,其晶粒非常小,它与自然骨中无机相的结构成分相似,表明复合涂层具有良好的生物活性.
参考文献
[1] | Keller L,Dollase W A.Journal of Biomedical Materials Research,2000,49 (2):244-249. |
[2] | Ha S W,Mayer J,Koch B,et al.Journal of Materials Science:Materials in Medicine,1994,5 (6-7):481-484. |
[3] | 憨勇,徐可为.硅酸盐通报,1997,5:47-49. |
[4] | Manso M,Jimenez C,Morant C,et al.Biomaterials,2000,21 (17):1755-1761. |
[5] | Nelea V,Morosanu C,Iliescu M,et al.Applied Surface Science,2004,228:346-356. |
[6] | Hsieh M F,Perng L H,Chin T S.Materials Chemistry and Physics,2002,74 (3):245-250. |
[7] | 郑学斌,丁传贤(ZHEN Xue-Bin,et al).无机材料学报(Journal of Inorganic Materials),2000,15(2):341-346. |
[8] | Dijk V,Schaeken K,Wolke,et al.Journal of Biomedical Materials Research,1995,29 (2):269-276. |
[9] | Jansen J A,Wolke J G C,Swann S,et al.Clinical Oral Implants Research,1993,4:28-34. |
[10] | Ding S J,Ju C P,Lin J H C.Journal of Biomedical Materials Research,1999,44 (3):266-279. |
[11] | Ding S J,Lee T L,Chu Y H.Journal of materials Science Letters,2003,22:479-482. |
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