| 1 | Dip Coating of Nano Hydroxyapatite on Titanium Alloy with Plasma Assistedγ-Alumina Buffer Layer:A Novel Coating Approach显示文摘This paper reported a novel coating approach to deposit a thin,crack free and nano-structured hydroxyapatite (HA) film on Ti6AI4V alloy with Al_2O_3 buffer layer for biomedical implants.The Al_2O_3 buffer layer was deposited by plasma spraying while the HA top layer was applied by dip coating technique.The X-ray diffraction(XRD) and Raman reflections of alumina buffer layer showedα- toγ-AI_2O_3 phase transformation; and the fractographic analysis of the sample revealed the formation of columnar grains in well melted splats. The bonding strength between Al_2O_3 coating and Ti6AI4V substrate was estimated to be about 40 MPa.The presence of dip coated HA layer was confirmed using XRD,scanning electron microscopy(SEM) and energy dispersive X-ray spectroscopy(EDX) analysis.The SEM images exhibited that HA top layer enveloped homogenously the troughs and crests of the underneath rough(R_a= 2.91 |im) Al_2O_3 surface.It is believed that the novel coating approach adopted might render the implant suitable for rapid cement-less fixation as well as biocompatible for longer periods. | M.Khalid M.Mujahid A.Nusair Khan R.S.Rawat | 2013 | Journal of Materials Science & Technology2013，29，6： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员