Control over Technological Parameters of Detonation Spraying for Producing Titanium Dioxide Coatings with Specified Wetting Properties

IF 1.4 4区化学 Q4 CHEMISTRY, PHYSICAL Colloid Journal Pub Date : 2024-11-06 DOI:10.1134/S1061933X24600933

V. V. Sirota, S. E. Savotchenko, V. V. Strokova, D. S. Podgoronyi, S. V. Zaitsev, A. S. Churikov, M. G. Kovaleva

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Abstract

The water-repellent properties have been studied for the surface of a protective metal–ceramic coating based on titanium dioxide. It has been shown that the water-repellent properties of the coating surface can be efficiently changed by varying the technological parameters of spraying. When producing the coatings, technological parameters, such as the distance between a substrate and a detonation gun barrel (spraying distance) and the speed of barrel movement, have been varied. Regularities have been derived to relate the technological parameters of the detonation spraying of the coating and its contact angle. It has been found that, under certain conditions, the dependence of the contact angle on the spraying distance obeys a parabolic law. Parameters have been calculated for the phenomenological equation that adequately describes the observed parabolic dependence. The optimal values of the detonation spraying parameters necessary to achieve the maximum hydrophobicity of the produced coatings have been determined.

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控制爆破喷涂技术参数以生产具有特定润湿性能的二氧化钛涂层

对基于二氧化钛的金属陶瓷保护涂层表面的憎水性能进行了研究。研究表明，通过改变喷涂技术参数，可以有效改变涂层表面的憎水性。在生产涂层时，改变了各种技术参数，如基体与雷管之间的距离（喷射距离）和雷管的移动速度。得出的规律表明，雷管喷涂涂层的技术参数与其接触角有关。研究发现，在某些条件下，接触角与喷涂距离的关系服从抛物线规律。已计算出充分描述观察到的抛物线依赖关系的现象学方程参数。还确定了使生产的涂层达到最大疏水性所需的引爆喷涂参数的最佳值。

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来源期刊

Colloid Journal 化学-物理化学

CiteScore

2.20

自引率

18.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Colloid Journal (Kolloidnyi Zhurnal) is the only journal in Russia that publishes the results of research in the area of chemical science dealing with the disperse state of matter and surface phenomena in disperse systems. The journal covers experimental and theoretical works on a great variety of colloid and surface phenomena: the structure and properties of interfaces; adsorption phenomena and structure of adsorption layers of surfactants; capillary phenomena; wetting films; wetting and spreading; and detergency. The formation of colloid systems, their molecular-kinetic and optical properties, surface forces, interaction of colloidal particles, stabilization, and criteria of stability loss of different disperse systems (lyosols and aerosols, suspensions, emulsions, foams, and micellar systems) are also topics of the journal. Colloid Journal also includes the phenomena of electro- and diffusiophoresis, electro- and thermoosmosis, and capillary and reverse osmosis, i.e., phenomena dealing with the existence of diffusion layers of molecules and ions in the vicinity of the interface.