en گروه سرامیک Ceramic Materials and Engineering Research Paper Research Paper <span style="font-size:12pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">The surface properties of metal-ceramic coatings based on titanium dioxide are described in dependence on the detonation spraying conditions. It is found that such properties as surface roughness, surface thickness and its hydrophobicity can be controlled in the production process by selecting certain values of the technological parameters of the spraying process. The optimal values of the technological parameters of detonation spraying, ensuring maximum hydrophobicity of the produced coatings are determined. The roughness of the coating surface and the coating thickness depend on the speed of the nozzle passage in accordance with the inverse power law. The roughness and the contact angle depend on spray distance in accordance with a parabolic law. New equations are obtained that can be useful for predicting the characteristics of the coating surface, as well as for determining the optimal mode of spraying the coating, ensuring its best hydrophobicity.</span></span></span><br> &nbsp; ceramics coatings,titanium dioxide coatings,contact angle,roughness,surface characteristics 132 143 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-5847-1&slc_lang=en&sid=1 Vyacheslav Sirota zmas36@mail.ru 1800319475328460022179 1800319475328460022179 No Belgorod V. G. Shoukhov State Technological University Sergey Savotchenko savotchenkose@mail.ru 1800319475328460022180 1800319475328460022180 Yes Sergo Ordzhonikidze Russian State Geological Prospecting University Valeriya Strokova vvstrokova@gmail.com 1800319475328460022181 1800319475328460022181 No Belgorod V. G. Shoukhov State Technological University Daniil Podgornyi dan_podgor@mail.ru 1800319475328460022182 1800319475328460022182 No Belgorod V. G. Shoukhov State Technological University Marina Kovaleva kovaleva_m_g@mail.ru 1800319475328460022183 1800319475328460022183 No Belgorod State National Research University Sergey V Zaitsev sergey-za@mail.ru 1800319475328460022184 1800319475328460022184 No Belgorod V. G. Shoukhov State Technological University, 46 Kostyukova str., Belgorod, 308012, Russia Аnton S Churikov churikov.toni@mail.ru 1800319475328460022185 1800319475328460022185 No Belgorod V. G. Shoukhov State Technological University, 46 Kostyukova str., Belgorod, 308012, Russia