Abstract

In this paper, we develop the thermodynamic models of electrochemical oxidation of niobium and tantalum that allow predicting the composition of their anodic oxides depending on the electrolyte composition. The reactivity of metals with respect to electrolyte anions was evaluated. It was revealed that doping additives can be included in the composition of anodic oxide films of Nb and Ta depending on the nature of the anions supplied by the electrolyte components. The thermodynamic modeling results will allow predicting the component compositions of anodizing solutions to obtain anodic oxide films of these elements with a specified composition.

中文翻译：

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铌和钽阳极氧化反应的热力学函数

摘要

在本文中，我们开发了铌和钽电化学氧化的热力学模型，该模型可以根据电解质的组成预测其阳极氧化物的组成。评估了金属相对于电解质阴离子的反应性。揭示了取决于电解质组分供应的阴离子的性质，Nb和Ta的阳极氧化物膜的组成中可以包含掺杂添加剂。热力学建模结果将允许预测阳极氧化溶液的组分组成，以获得具有指定组成的这些元素的阳极氧化膜。