A Study of the Surface Structure of Electrodes during Discharge in an Electrolyte in a Magnetic Field

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-12 DOI:10.1134/s0018151x23030094

D. L. Kirko

引用次数: 0

Abstract

The occurrence of microstructures on the surface of tungsten and titanium electrodes during discharge in an electrolyte in the presence of a magnetic field has been studied. Electrical characteristics of the discharge at various modes were obtained. The plasma temperature in the near-electrode region was measured using spectral methods. Conical and pointed formations with sizes up to 10 µm occurred on tungsten electrodes. The appearance of microspheres and porous surfaces was observed on titanium electrodes. The growth of these surface structures accelerated and their characteristics improved under the effect of a magnetic field. The mechanism of growth of the observed microstructures are discussed.

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磁场中电解质放电时电极表面结构的研究

摘要研究了钨和钛电极在存在磁场的电解液中放电时表面出现的微结构。研究获得了不同模式下放电的电特性。使用光谱方法测量了近电极区域的等离子体温度。在钨电极上出现了大小达 10 µm 的锥形和尖形。钛电极上出现了微球和多孔表面。在磁场的作用下，这些表面结构的生长速度加快，其特性也得到改善。本文讨论了所观察到的微结构的生长机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.