Blast coating method: New method of coating titanium surface with hydroxyapatite at room temperature
Blast coating method: New method of coating titanium surface with hydroxyapatite at room temperature
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DOI：
10.1002/(sici)1097-4636(199722)38:2
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发表时间：
1997-06-01
期刊：
影响因子：
--
通讯作者：
Asaoka, K
中科院分区：
文献类型：
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作者：
Ishikawa, K;Miyamoto, Y;Asaoka, K
用普通喷砂机在室温下对钛板进行羟基磷灰石[HAP；Ca10-x(HPO4)(X)(PO4)(6-x)(OH)(2-x)]粉末喷砂，发现钛板表面均匀、完整地被羟基磷灰石(HAP)包覆。用X射线能谱和X射线衍射仪对涂层进行了分析，发现涂层的成分和晶体结构与所用的HAP粉末相同。涂层HAP层与钛板表面紧密结合，至少在扫描电子显微镜水平上，有趣的是，HAP颗粒在室温下粘结在一起，就像它们被烧结一样，涂层在水中至少在超声波下稳定5min，很难通过指甲抓取去除，因此，HAP粉末与钛板之间的结合强度远远高于目前采用的室温涂层工艺，如浸渍、电沉积和电化学沉积，因此，喷雾涂层方法在制备用于硬组织替代的有用生物材料方面具有潜在的价值。(C)1997年John Wiley&Sons，Inc.
When a titanium plate was blasted with hydroxyapatite [HAP; Ca10-x(HPO4)(x)(PO4)(6-x)(OH)(2-x)] powder at room temperature using an ordinary sandblaster, the surface of the titanium plate was found to be coated with HAP homogeneously and completely, The coated layer was examined with energy dispersive X-ray spectroscopy and X-ray diffraction and was found to be the same as the HAP powder used with respect to composition and crystallographic structure. The coated HAP layer was tightly attached to the surface of the titanium plate, at least at the level of scanning electron microscopy, Interestingly, the HAP particles stuck together at room temperature as if they were sintered, The coating was stable against ultrasonication in water for at least 5 min, and it was difficult to remove by nail scratching, Thus, the bonding strength between the HAP powder and the titanium plate was much higher than that achieved with currently employed room temperature coating processes such as dipping, electrophoretic deposition, and electrochemical deposition, Therefore, the blast coating method is potentially valuable for the fabrication of useful biomaterials for hard tissue replacement. (C) 1997 John Wiley & Sons, Inc.