A further insight into coating-substrate interface of TiUnite implant by a novel coating detachment method
A further insight into coating-substrate interface of TiUnite implant by a novel coating detachment method
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通过新型涂层分离方法进一步深入了解 TiUnite 种植体的涂层-基底界面
DOI：
10.1016/j.surfcoat.2018.08.071
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发表时间：
2018-11
影响因子：
5.4
通讯作者：
Weidong Tian
中科院分区：
文献类型：
--
作者：
Zhen Wan;Ruitao Zhang;Li Xie;Suru Liu;Hao Wu;Yuan Tian;Weidong Tian
这项工作报告了一种新方法的开发，用于处理商业TiUnite®植入物，以分离其紧密结合的表面氧化层。植入物在含氟电解质（通常用于制备TiO2纳米管）中以50 V阳极氧化2 h，导致涂层分离。用分离的涂层碎片制备高质量的涂层横截面样品。通过扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）分析暴露的钛基体和脱落的涂层。有趣的是，发现涂层-基体界面呈现出特定的"榫卯"锚固结构。作为对比，还进行了聚焦离子束（FIB）方法，结果显示，不均匀的结合界面，特定的内部孔隙分布和不同的涂层厚度的氧化物涂层。EDX结果表明，FIB处理后的涂层中存在Ga+离子，而新方法会增加O元素的含量。该方法为TiUnite种植体的检测提供了一个全新的视角，并前所未有地加深了对其涂层-基体界面特征的认识。为涂层钛基种植体的研究、开发和评价提供了一种新的、经济的方法。
This work reports the development of a novel method to treat a commercially TiUnite® implant to detach its tightly bonded surface oxide layer. The implant was anodized in a fluorine-containing electrolyte (usually for TiO2nanotubes preparation) at 50 V for 2 h, which resulted in detachment of the coating. High-quality coating cross-sectional samples were prepared with detached coating fragments. Both the exposed titanium substrate and the detached coating were analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). It was interesting to find that the coating-substrate interface exhibited a specific “mortise-tenon” anchorage structure. For comparison, focused ion beam (FIB) method was also conducted and the results revealed uneven bonding interface, specific internal pores distribution and varied coating thickness of the oxide coating. EDX results reported to existence of Ga+ion in the coating after FIB treatment while the novel method would increase the O element content. The novel method gave a brand new angle for detection of TiUnite implant and enhanced the understanding of its coating-substrate interface features unprecedentedly. It provides a novel and economy method for research, development and evaluation of coated titanium-based implant.
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影响因子：
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作者：
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影响因子：
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