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Преподаватели и сотрудники

Шарапаев Александр Игоревич

Шарапаев Александр Игоревич

Занимаемые должности

Ассистент (Кафедра наноматериалов и нанотехнологии)

Телефон

8-495-495-21-16, доб. 50-54

E-mail

asharapaev@muctr.ru

Сайт https://muctr.ru
Уровень образования Высшее
Квалификация

Инженер

Преподаваемые дисциплины

Магнитные наноматериалы

Элементы кристаллографии

Компьютерные и информационные технологии в наноиндустрии

Методы обработки информации в технологии наноматериалов

Наименование направления подготовки и (или) специальности

Наноматериалы

Данные о повышении квалификации и (или) профессиональной переподготовке

Введение в тензорный анализ, РХТУ им. Д.И. Менделеева, 60 часов, Повышение квалификации, 17.09.2015 -19.11.2015, Удостоверение № 772402002041 от 19.11.2015 г.

Общий стаж работы 5 лет (с 10.02.2014)
Стаж работы по специальности 5 лет (с 10.02.2014)

Публикации

Effect of magnetite nanoparticles’ modification on optical properties of solar absorber coatings / V. N. Strapolova, E. V. Yurtov, A. G. Muradova, A. I. Sharapaev // Journal of Spacecraft and Rockets. — 2018. — Vol. 55, no. 1. — P. 49–53. The effect of magnetite nanoparticles on the optical characteristics of a thermal control coating (where αsαs is solar absorptance, and ϵ is emittance) of the “true absorber” class as well as the effect of magnetite nanoparticles on optical coefficient changes of the coating under the influence of proton radiation were studied. It was revealed that the iron oxide nanoparticles added into an enamel increased the solar absorptance from 0.95 to 0.97, and the emittance was increased from 0.92 to 0.94. Experiments on irradiation of the coating samples by 20 keV protons showed stability of the optical properties of the coating. Injection of magnetite nanoparticles led not only to improvement of the optical properties of the coating but also to a decrease of the degradation of the coating surface. [ DOI ]

Fe3o4/sio2 core shell nanostructures: Preparation and characterization / M. P. Zaytseva, A. G. Muradova, A. I. Sharapaev et al. // Russian Journal of Inorganic Chemistry. — 2018. — Vol. 63, no. 12. — P. 1684–1688. Silica coated iron oxide nanoparticles with controlled silica shell thickness were prepared by a modified Stöber method. Modification of the Stöber method consisted of changing the synthesis conditions to control the thickness of the SiO2 shell. The core-shell nanoparticles were characterized by means of X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectroscopy and vibrational sample magnetometry. It was found that the shell formed after 8 hours of stirring. An increase of the tetraethoxysilane- magnetite mass ratio from 12.5 to 25.1 led to an increase of the shell thickness, whereas further increase in the tetraethoxysilane-magnetite mass ratio (from 25.1 to 37.6) led to decrease shell thickness. The core size has only insignificant influence on the shell thickness. Magnetic properties of composite particles correlate well with properties of pure magnetite nanoparticles considering dilution of magnetic particles by silica. Obtained results can be used for fabrication of silica shell with controlled thickness on the surface of different sized magnetite nanoparticles. [ DOI ]

Мурадова А. Г., Шарапаев А. И., Петунин А. Б. Металлические мембраны для очистки теплоносителя первого контура водо-водяного энергетического реактора // Экстракция и мембранные методы в разделении веществ: тезисы докладов международной конференции, посвящённой 90-летию со дня рождения академика Б. А. Пурина. — РХТУ им. Д.И. Менделеева Москва, 2018. — С. 145–146.

Novikov V. I., Muradova A. G., Sharapaev A. I. Fabrication of metal–ceramic membranes withstanding extreme operating conditions // Petroleum Chemistry. — 2017. — Vol. 57, no. 11. — P. 929–934. Preparation of bilayer metal–ceramic membranes with porous stainless steel supports and selective layers based on TiO2 has been described. The resulting membranes have high air and distilled water fluxes. Pressure-hold tests have shown that the experimental samples of stainless steel supports withstand pressure drop up to 1.9 MPa. Toxicological tests showed the possibility of using these membranes in medical industry. These membranes can be used for microfiltration in hot corrosive environments as high-efficiency filters in chemical and microbiological industries and fine filters in food production processes, membrane sterilization, and other fields. [ DOI ]

Petunin A. B., Sharapaev A. I., Muradova A. G. Tubular metal membranes for cleaning the primary-circuit coolant of a pressurized water reactor (wwer) // Petroleum Chemistry. — 2017. — Vol. 57, no. 6. © 2017, Pleiades Publishing, Ltd.The fabrication of tubular microfiltration membranes from PKh18N15 corrosion-resistant steel by the method of radial isostatic pressing and magnetron plasma ion deposition of the surface layer is described. Scanning electron microscopy has been used to study the structure of the substrate and surface layers of the membrane. The flux values of tubular membranes have been found to be 1.39 × 10−8, 1.88 × 10−8, and 5.53 × 10−8 m3/(m2 Pa s) for the membranes with pore sizes of 1, 5, and 20 μm, respectively. The possibility of regenerating tubular membranes and restoring their productivity by backwashing has been shown. The service life of the membranes with different pore sizes has been determined during the treatment of make-up water for the sample preparation system of the primary circuit coolant of a pressurized water reactor (WWER). [ DOI ]

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