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首页> 外文会议>International Symposium on Eco-Materials Processing amp; Design; 20060108-11; Chengdu(CN) >Effect of Surface Morphology on Apatite Formation
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Effect of Surface Morphology on Apatite Formation

机译：表面形态对磷灰石形成的影响

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摘要

The bioactivity of Ti6Al4V induced by SSPB (supersonic particles bombarding) and alkali treatment was investigated in this work. More coarse surfaces were formed by SSPB and alkali treatment, which led to better bioactivity than that by only alkali treatment. Apatite began to appear on the surface of specimen only after 1 day of immersion in 1.5 SBF. As time passed, they gradually covered the whole surfaces. After 7 days of soaking in vitro, apatite formed and covered all the surfaces of the titanium alloys, and they packed very densely and uniformly. EDS and XRD results proved all the new-formed phases were composed of a carbonate containing hydroxyapatite with small crystallites and defective structure. As a result, SSPB treatment might be an effective way to enhance the bioactivity of titanium alloys for implantation.
机译：在这项工作中研究了SSPB（超音速轰击）和碱处理诱导的Ti6Al4V的生物活性。 SSPB和碱处理会形成更多的粗糙表面，与仅碱处理相比，具有更好的生物活性。磷灰石在1.5 SBF中浸泡1天后才开始出现在样品表面。随着时间的流逝，它们逐渐覆盖了整个表面。在体外浸泡7天后，磷灰石形成并覆盖了钛合金的所有表面，并且它们非常密集且均匀地堆积。 EDS和XRD结果证明，所有新形成的相均由含有羟基磷灰石的碳酸盐组成，具有细小的晶体和结构缺陷。因此，SSPB处理可能是增强钛合金植入生物活性的有效方法。

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