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Information × Registration Number 0219U003650, 0116U000856 , R & D reports Title Development of theoretical bases of synthesis of radio-ceramic materials based on the system RO-RO2-Al2O3-SiO2 popup.stage_title Head Lisachuk Georgiy, Registration Date 07-02-2019 Organization The Kharkov state polytechnical university popup.description2 The object of study - the formation of crystalline phases that can provide low loss dielectric ceramic materials and maximum transmission frequency range of electromagnetic waves, and methods of designing phase structure of materials with desired radio physical characteristics based on actual thermal and mechanical loads during operation. The aim is to develop theoretical and technological principles receipt radio ceramic compositions based systems RO - RO2 - Al2O3 - SiO2 (where RO - BaO, SrO, ZnO; RO2 - TiO2) with the participation of s-, p- and d-elements positively affect the molecular structure of ceramics, contribute to the formation of a given phase composition and structure of high-density materials that have set high functional characteristics and performance properties. Methods of research - theoretical calculations in the diagrams of the state of oxide systems; forecasting of phase composition and composition properties; research of physical-mechanical, electrophysical and chemical properties of ceramic materials. The analysis of scientific and technical and patent information on the issues of obtaining ceramic radiopharmaceutical materials on the basis of the systems SrO - Al2O3 - SiO2, BaO - Al2O3 - SiO2, ZnO - Al2O3 - SiO2 and their combination BaO - SrO - Al2O3 - SiO2 and ZnO - SrO - Al2O3 - SiO2 A database of thermodynamic data of binary and triple compound systems has been created to predict the phase composition of radio-transparent materials. A thermodynamic analysis was conducted to determine the temperature and concentration conditions for the formation of given crystalline phases in the range of temperatures of 300 - 1700 ° C. The theoretically grounded and experimentally confirmed the possibility of ceramic radiolabelling materials with specified electrodynamic and operational properties due to the low temperature synthesis of slavsonite, tonsilian and villlemite Scope - Theoretical developments can be used to create radio-transparent ceramic materials in space, rocket and other fields of electronic technology. Product Description popup.authors Гребенюк Андрій Петрович Захаров Артем Вячеславович Карпутін Борис Андрійович Корабльова Поліна Сергіївна Кривобок Руслан Вікторович Майстат Микита Сергійович Пітак Ярослав Миколайович Приткіна Марія Сергіївна Рябінін Олександр Сергійович Федоренко Олена Юріївна Чефранов Євген Вікторович popup.nrat_date 2020-04-02 Close