Ensuring the functional properties of light-transmitting surfaces of mining equipment elements through the use of tin oxide-based coatings
Обеспечение функциональных свойств светопропускающих поверхностей элементов горной техники за счет использования покрытий на основе оксида олова
Dmitriyeva E.A. Yelemessov K.K.
2024North Caucasian Institute of Mining and Metallurgy, State Technological University
Sustainable Development of Mountain Territories
2024#16Issue 3943 - 953 pp.
Introduction. The article is devoted to the methods of producing transparent conductive coatings for heating glass in mining equipment and gas-sensitive coatings for mine sensors. Materials and Methods. Three film-forming systems were considered in the work: tin tetrachloride in ethanol, tin hydroxide hydrosol and their mixture in a ratio of 1: 1 by volume. The structure of the coatings, their transmission and reflection spectra, and the sensitivity of the resulting coatings to water vapor were studied. Results. Sensitivity to water vapor was found in coatings obtained from Sn(OH)4 hydrosol at room temperature (24°C). Coatings from the film-forming system - tin tetrachloride in ethanol, demonstrate a transmittance of 80-85% in the visible region and a resistance of 9.7±0.4 kOhm. These coatings can be used for heating glass. Coatings obtained from a 1:1 mixture are sensitive to water vapor and are more resistant to abrasion than coatings obtained from a hydrosol. Discussion. The film obtained from the ethanol system is not sensitive to water vapor. The film obtained from the sol is sensitive to ethanol vapor. Its resistance, when water vapor is introduced, changes by 3.75 times in less than 1 s. The initial resistance value is restored in about 3 s. Films obtained from a mixture of film-forming systems are also sensitive to water vapor. However, the response time and the time of restoration of the initial resistance value are longer than those of films obtained from the sol. Conclusion. Coatings from the film-forming system - tin tetrachloride in ethanol, can be used to heat glass. Coatings obtained from a 1:1 mixture are sensitive to water vapor at room temperature (24°C) and can be used as sensitive elements for water vapor in devices monitoring operating conditions in mines. Resume. The technology of manufacturing thin films on glasses based on tin oxide obtained in the course of the work allows to form stable coatings. The properties of these coatings allow to carry out heating when passing electric current through them. Also, the effect of water vapor on films obtained under certain conditions causes a change in their properties. This allows to use the obtained results of the work for practical application in the manufacture of elements of mining equipment. The formed coatings can be used for the manufacture of humidity and water vapor sensors, as well as for the manufacture of heated glass.
gas sensitivity , reflection , structure , transmission spectra , transparent conductive coatings
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Institute of Physics and Technology, Kazakh National Research Technical University named after K.I. Satpayev, 22, Satpayeva str., Almaty, 050000, Kazakhstan
Department of Materials Science, Nanotechnology and Engineering Physics, Institute of Energy and Mechanical Engineering, Kazakh National Research Technical University named after K.I. Satpayev, 22, Satpayeva str., Almaty, 050000, Kazakhstan
Institute of Physics and Technology
Department of Materials Science
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