The simulation of the electrochemical cathodic Ca–P deposition process

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• 作者：Shaolin Chen ; Wenlong Liu ; Zhijuan Huang ; Xiaoguang Liu ; Qiyi Zhang ; Xiong Lu
• 关键词：Simulation ; Thermodynamics ; Kinetics ; Ca– ; P nucleation model ; Electrochemical deposition
• 刊名：Materials Science and Engineering: C
• 出版年：2009
• 出版时间：1 January 2009
• 年：2009
• 卷：29
• 期：1
• 页码：108-114
• 全文大小：691 K

文摘

Electrochemical cathodic deposition has been widely employed for fabrication of Ca–P films onto surface of titanium. However, systematical and theoretical analyses for this process are rarely reported. In this study, a model of Ca–P nucleation for electrochemical deposition process was proposed based on classical crystallization theories of thermodynamics and kinetics. The obtained results from this model referred to that: the following results are obtained: the Ca–P phase precipitated on titanium is DCPD under lower loading current (I₀ < 0.5 mA) and shorter loading time (t < 50 s); the preferential precipitated phase on titanium is OCP under higher loading current (I₀ > 0.5 mA) and longer loading time (t > 50 s). Inspiringly, this theoretical model was successfully validated with our experimental results analyzed through high-resolution TEM micrographs.