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电诱导牙釉质表面羟基磷灰石涂层形成的研究
Authors
冯祖德
廖颖敏
雷彩霞
Publication date
10 July 2009
Publisher
Abstract
以含Ca(NO3)2、NH4H2PO4和NaNO3组成的溶液作为电解液,在人牙釉质表面电诱导制备了羟基磷灰石(HA)涂层。应用X射线衍射(XRD)﹑扫描电镜(SEM)和能谱分析(EDS)对形成涂层后的牙釉质样品进行分析和表征,研究了电解液初始pH值﹑电流密度和温度的变化对涂层的组成﹑结构和形貌的影响。研究结果表明这些因素对涂层的组分(HA)没有显著影响,而对涂层中HA晶体c轴的择优取向度的影响则较显著。当控制电解液的初始pH值为6﹑电流密度为0.5mA·cm-2﹑温度为55℃的时候,涂层中HA晶体沿c轴方向择优取向生长,且择优取向度和牙釉柱的HA较为接近
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Last time updated on 16/06/2016