We study the influence of the voltage (100–180 V) of plasma-electrolytic oxidation on the formation of hydroxyapatite coatings on VT1-0 commercially pure titanium in alkaline electrolytes (hydroxyapatite + 1 M potassium hydroxide). We analyze the physical and chemical characteristics of hydroxyapatite coatings (phase composition, thickness, porosity, and surface roughness) and establish the conditions of formation of coatings for which the ratio Ca/P is close to the values typical of biological hydroxyapatite.

中文翻译：

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在碱性电解质中通过等离子体电解氧化在钛表面形成羟基磷灰石涂层

我们研究了等离子体电解氧化的电压（100-180 V）对碱性电解质（羟基磷灰石 + 1 M 氢氧化钾）中 VT1-0 商业纯钛上羟基磷灰石涂层形成的影响。我们分析了羟基磷灰石涂层的物理和化学特性（相组成、厚度、孔隙率和表面粗糙度），并建立了 Ca/P 比接近生物羟基磷灰石典型值的涂层的形成条件。