Abstract—

The cathode plasma of a discharge in an electrolyte based on sodium carbonate and sodium hydroxide is studied as well as its interaction with the surface of electrolytes made from tungsten, tantalum, and titanium. The electrotechnical properties of the discharge are measured by spectral methods and the electron temperature of the near-cathode plasma is determined. When tungsten electrodes are used, 0.2–1.5-µm-diameter thread-like structures appear on their surface. Interaction with the discharge current destroys tantalum electrodes. On the surface of titanium electrodes, 1–40-µm-diameter sphere-like formations and areas of a porous surface with a pore diameter of 0.1–1 µm are observed. The mechanism of the formation of these surface structures is discussed.

中文翻译：

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电解液放电过程中的近电极等离子体和电极表面的研究

摘要-

研究了基于碳酸钠和氢氧化钠的电解质在放电中的阴极等离子体及其与钨，钽和钛制成的电解质表面的相互作用。通过光谱方法测量放电的电工性能，并确定近阴极等离子体的电子温度。使用钨电极时，其表面会出现直径为0.2-1.5μm的螺纹状结构。与放电电流的相互作用会破坏钽电极。在钛电极的表面上，观察到直径为1–40 µm的球形结构和孔径为0.1–1 µm的多孔表面区域。讨论了这些表面结构的形成机理。