{"title":"Features of Direct Current Microdischarges between Metal and Liquid Electrolyte Electrodes in an Open Atmosphere","authors":"G. K. Tazmeev, K. K. Tazmeev","doi":"10.1134/S1062873826701613","DOIUrl":null,"url":null,"abstract":"<p>Direct current microdischarges in air at atmospheric pressure were experimentally investigated within the current range of 100–1000 mA. The metallic electrodes were made of copper. The liquid electrolyte anode was a sodium chloride solution in distilled water with a molar concentration of 0.1 mol/L. The conditions under which a diffuse spot forms on the copper cathode were identified. The traces of the cathode spot were used to calculate the current density, yielding a value of 9.5 ± 0.4 A/cm<sup>2</sup> for the diffuse spot. High-speed imaging showed that microdischarges with a liquid electrolyte anode, unlike those between metallic electrodes, exhibit lower spatial stability. It was experimentally established that in an open-air atmosphere, an electric discharge between a rod-shaped cathode and a liquid electrolyte anode it is difficult to obtain at currents exceeding 1 A.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 9","pages":"1629 - 1634"},"PeriodicalIF":0.4800,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Russian Academy of Sciences: Physics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1062873826701613","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
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Abstract
Direct current microdischarges in air at atmospheric pressure were experimentally investigated within the current range of 100–1000 mA. The metallic electrodes were made of copper. The liquid electrolyte anode was a sodium chloride solution in distilled water with a molar concentration of 0.1 mol/L. The conditions under which a diffuse spot forms on the copper cathode were identified. The traces of the cathode spot were used to calculate the current density, yielding a value of 9.5 ± 0.4 A/cm2 for the diffuse spot. High-speed imaging showed that microdischarges with a liquid electrolyte anode, unlike those between metallic electrodes, exhibit lower spatial stability. It was experimentally established that in an open-air atmosphere, an electric discharge between a rod-shaped cathode and a liquid electrolyte anode it is difficult to obtain at currents exceeding 1 A.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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