In previous studies, Zr gained apatite-forming ability by various methods; however, it took more than 7 days in simulated body fluid (SBF) to gain apatite-forming ability. In this study, the authors developed the method to achieve apatite-forming ability in Zr alloy within 1 day in SBF by a combination with apatite nuclei that promote apatite formation in SBF. First, Zr–Sn alloy was soaked in concentrated sulphuric acid, and pores in micro-level were formed on the surface of Zr–Sn alloy. To attain apatite forming ability in Zr–Sn alloy, second, apatite nuclei were formed in the micropores. To evaluate apatite-forming ability, thus-obtained Zr–Sn alloy with apatite nuclei was soaked in SBF; hydroxyapatite formation was observed on the whole surface of the Zr–Sn alloy plates. From this result, it was clarified that higher apatite-forming ability was attained on the apatite nuclei-treated Zr–Sn alloy with micropores in comparison with that without micropores. When adhesive strength of formed hydroxyapatite film with respect to Zr–Sn alloy plates was measured, high-adhesive strength of the formed apatite film was attained by forming micropores and subsequently precipitating apatite nuclei in the fabrication process because of an interlocking effect caused by hydroxyapatite formed in the micropores.

中文翻译：

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结合微孔形成和磷灰石核沉积开发生物活性锆锡合金

在以往的研究中，Zr 通过各种方法获得了磷灰石形成能力；然而，在模拟体液 (SBF) 中需要超过 7 天才能获得形成磷灰石的能力。在这项研究中，作者开发了一种方法，通过与促进 SBF 中磷灰石形成的磷灰石核相结合，在 SBF 中 1 天内在 Zr 合金中实现磷灰石形成能力。首先，将 Zr-Sn 合金浸泡在浓硫酸中，在 Zr-Sn 合金表面形成微孔。为了在 Zr-Sn 合金中获得磷灰石形成能力，其次，在微孔中形成磷灰石晶核。为了评估磷灰石的形成能力，将由此获得的具有磷灰石晶核的 Zr-Sn 合金浸泡在 SBF 中；在 Zr-Sn 合金板的整个表面上观察到羟基磷灰石的形成。从这个结果来看，阐明了与没有微孔的相比，磷灰石核处理的具有微孔的 Zr-Sn 合金获得了更高的磷灰石形成能力。当测量形成的羟基磷灰石膜相对于 Zr-Sn 合金板的粘合强度时，由于形成的羟基磷灰石引起的联锁效应，通过在制造过程中形成微孔并随后沉淀磷灰石核来获得形成的磷灰石膜的高粘合强度。在微孔中。