Advanced Functional Surface & Biomaterials Research Lab, Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University, Gwangju, 61452, Republic of Korea.
J Nanosci Nanotechnol. 2021 Jul 1;21(7):3753-3758. doi: 10.1166/jnn.2021.19163.
In this study, plasma electrolytic oxidation (PEO) on Ti-Nb-2Ag-2Pt alloys for nano- and micro-pore formation in electrolyte with Ca and P ions for dental implant use was studied using various experimental equipment. The Ti-Nb-2Ag-2Pt alloys were fabricated using a vacuum arc melting furnace, and micro-pores were created through PEO-treatment in an electrolyte containing Ca and P ions. The PEO-treated surface was observed by X-ray diffractometer (XRD), field-emission scanning electron microscopy, and energy dispersive X-ray spectroscopy (EDS). The microstructure of Ti- xNb-2Ag-2Pt alloys showed the transformation of needle-like structure to equiaxed structure, as Nb content increased. Adding small amounts of Ag and Pt to Ti-Nb alloys, microstructure was not observed the significantly difference compared to Ti-Nb. The nano- and micro-pore sizes increased as the Nb content increased after PEO-treatment of Ti-xNb. In the case of Ti-50Nb-2Ag-2Pt, groove structure was observed, also the Ca/P ratio increased as the Nb content increased. The oxide layer thickness of Ti-Nb-2Ag-2Pt alloys was increased, as the Nb content increased.
在这项研究中，使用各种实验设备研究了用于牙科植入物的含有 Ca 和 P 离子的电解质中 Ti-Nb-2Ag-2Pt 合金的等离子电解氧化 (PEO) 纳米和微孔的形成。Ti-Nb-2Ag-2Pt 合金采用真空电弧熔炼炉制备，通过含有 Ca 和 P 离子的电解质中的 PEO 处理形成微孔。通过 X 射线衍射仪 (XRD)、场发射扫描电子显微镜和能谱仪 (EDS) 观察 PEO 处理后的表面。Ti-xNb-2Ag-2Pt 合金的微观结构显示，随着 Nb 含量的增加，针状结构向等轴结构转变。向 Ti-Nb 合金中添加少量 Ag 和 Pt 时，与 Ti-Nb 相比，微观结构没有明显差异。Ti-xNb 经 PEO 处理后，纳米和微孔尺寸随 Nb 含量的增加而增加。在 Ti-50Nb-2Ag-2Pt 的情况下，观察到了沟槽结构，而且随着 Nb 含量的增加，Ca/P 比也增加了。随着 Nb 含量的增加，Ti-Nb-2Ag-2Pt 合金的氧化层厚度增加。
