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Документ Establishing the regularities in forming the properties of ceramic wall materials containing waste from gas extraction (drilling sludge)(PC Technology Center, 2020) Rykusova, N.; Shestopalov, Oleksii; Shchukina, L.; Yashchenko, L.; Stanovska, I.; Muradian, A.; Ocheretna, V.This paper addresses the prospects of recycling waste from oil and gas extraction in order to manufacture building materials. The principal possibility has been established to apply the examined samples of drilling sludge as the basic raw material and a mineral additive in the compositions of masses to produce wall ceramics with the required consumer properties. The main technological parameters for obtaining wall ceramics using the samples of gas extraction waste have been investigated. The formulations for ceramic masses have been developed applying fusible medium-sintered loam and drilling sludge in the amount of 20–80 % by weight. The properties of the obtained ceramic samples containing clay and high-carbonate drilling sludges have been analyzed. It has been found that increasing the amount of drilling sludge in the samples by 20 % to 80 % leads to a decrease in the density, strength, and an increase in the water absorption of the samples, which affects the quality of ceramics and the possibility of its practical use. We have established the regularities of change in the properties of the wall materials samples depending on the amount of the examined drilling sludge. The optimal number of drilling sludge samples for the manufacture of wall ceramics with the norm-compliant properties has been determined. It has been found that it is possible to use clay drilling sludge (20‒80 %) in the composition with fusible loam in order to obtain frost-resistant ceramic materials whose water absorption is at the level of 12 %, of grade M 125‒M 175. Adding high carbonate sludge to fusible loam in the amount of 20 % makes it possible to receive frost-resistant ceramic materials of grade M 75, in the amount of 40 % ‒ of grade M 100.Документ Development technology of electrical conductance ceramics(Національний технічний університет "Харківський політехнічний інститут", 2020) Lisachuk, Georgiy Viktorovych; Ved, Maryna Vitaliivna; Kryvobok, Ruslan Viktorovych; Zakharov, Artem Viacheslavovych; Voloshchuk, Valentyna Vasylivna; Maistat, Mykyta SerhiiovychThe article considers the influence of the technological parameters of the composite ceramics production on the specific volume resistivity of the composition and, consequently, on the protective properties against the effects of electromagnetic radiation. The technological parameters included the preparation method, the averaging time of the raw materials, both the pressing and second calcination pressure. Based on the complex of studies carried out, the following technological parameters of production were established: duration of grinding – 60 minutes; the moisture content of the press powder is 6.2%; pressing pressure – 25 MPa; first calcination temperature – 1060 °С; temperature of the second calcination – 1060 °C. The developed technology can be applicated at enterprises that produce ceramic tiles according to high-speed calcination. The resulting material can to protect biological and technical objects from the action of electromagnetic radiation. Further research at selecting a glaze coating for the developed ceramics is aimed.Документ Ceramics with adjustable dielectric properties based on the system SrO – TiO₂ – SiO₂(2018) Lisachuk, Georgy; Kryvobok, Ruslan; Pitak, Yaroslav; Lapuzina, O.; Gusarova, Irina; Lisachuk, Lidiya; Grebenyuk, AndreyThis work presents the results of optimization of the compositions area of radio-absorbing ceramic. As a result of laboratory samples test, dependences "composition – property" was obtained, the choice of the most technologically advanced composition area and sintering temperature for manufacturing the radio-absorbing ceramic was substantiated. The optimal composition of the Sr- titanate ceramics is characterized by the following properties: water absorption (W = 1,3 %), dielectric permeability (ε = 115), density (ρ =4,35·10³ kg/m³).Документ Новые полифункциональные анти-граффити-системы(НТУ "ХПИ", 2014) Фон Лаар, К.; Лесных, Н. Ф.; Шоманн, М.; Федоренко, Елена ЮрьевнаВ статье представлены тенденции развития и результаты исследований полифункциональных анти-граффити-систем (АГС) с гидрофобизирующей функцией для защиты поверхностей, предложены концепция их ускоренного тестирования и параметры для оценки эффективности.