Lee Kang, Jang Jae- In, Han-Cheol Choe
J Nanosci Nanotechnol. 2017 Apr;17(4):2596-600. doi: 10.1166/jnn.2017.13327.
In this study, we prepared hydroxyapatite (HAp) layer on the alkali treated Ti–30Ta–xHf alloys using electrochemical deposition method. Ti–30Ta–xHf alloys was anodized in 5 M NaOH solution at 0.3 A for 10 min. Alkali treated Ti–30Ta–xHf surface formed by anodization step which acted as templates and anchorage for growth of the HAp during subsequent pulsed electrochemical deposition process at 85 °C. The phase and morphologies of deposited HAp layer were affected by the Hf contents of Ti–30Ta–xHf alloys. The nano-scale rod-like HAp layer was formed on untreated Ti–30Ta–xHf alloys with partially low crystallinity. In the case of alkali treated Ti–30Ta–xHf, nano-sized needle-like layers were transferred to nano-flake surface and denser morphology as Hf content increased.
在本研究中，我们采用电化学沉积法在碱处理后的Ti-30Ta-xHf合金上制备了羟基磷灰石（HAp）层。将Ti-30Ta-xHf合金在5 M NaOH溶液中以0.3 A的电流进行阳极氧化处理10分钟。通过阳极氧化步骤形成的碱处理Ti-30Ta-xHf表面，在随后85°C的脉冲电化学沉积过程中作为HAp生长的模板和锚固点。沉积的HAp层的相和形态受Ti-30Ta-xHf合金中Hf含量的影响。在未经处理的Ti-30Ta-xHf合金上形成了具有部分低结晶度的纳米级棒状HAp层。对于碱处理后的Ti-30Ta-xHf，随着Hf含量的增加，纳米尺寸的针状层转变为纳米片状表面且形态更致密。
