The aim of this study was to adapt the electrochemical behavior in synthetic body fluid (SBF) of hydroxyapatite-based coatings obtained by pulsed galvanostatic electrochemical deposition through addition of Mg in different concentrations. The coatings were obtained by electrochemical deposition in a typical three electrodes electrochemical cell in galvanic pulsed mode. The electrolyte was obtained by subsequently dissolving Ca(NO₃)₂·4H₂O, NH₄H₂PO₄, and Mg(NO₃)₂·6H₂O in ultra-pure water and the pH value was set to 5. The morphology consists of elongated and thin ribbon-like crystals for hydroxyapatite (HAp), which after the addition of Mg became a little wider. The elemental and phase composition evidenced that HAp was successfully doped with Mg through pulsed galvanostatic electrochemical deposition. The characteristics and properties of hydroxyapatite obtained electrochemically can be controlled by adding Mg in different concentrations, thus being able to obtain materials with different properties and characteristics. In addition, the addition of Mg can lead to the control of hydroxyapatite bioactive ceramics in terms of dissolution rate.

中文翻译：

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可调电化学行为的脉冲恒电流电化学沉积获得的镁掺杂羟基磷灰石基涂层

这项研究的目的是通过添加不同浓度的Mg来适应通过脉冲恒电流电化学沉积获得的羟基磷灰石基涂料在合成体液（SBF）中的电化学行为。通过在典型的三电极电化学电池中以电脉冲模式通过电化学沉积获得涂层。通过随后溶解Ca（NO ₃）₂ ·4H ₂ O，NH ₄ H ₂ PO ₄和Mg（NO ₃）₂ ·6H _2来获得电解质。O在超纯水中的pH值设置为5。形态包括羟基磷灰石（HAp）的细长薄带状晶体，加入Mg后其结晶变得稍宽。元素和相组成证明，通过脉冲恒电流电化学沉积可以成功地将HAp掺入Mg。电化学获得的羟基磷灰石的特性和性质可以通过添加不同浓度的Mg来控制，因此能够获得具有不同特性和特征的材料。另外，Mg的添加可以控制羟基磷灰石生物活性陶瓷的溶解速率。