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Information × Registration Number 0216U002434, 0115U001553 , R & D reports Title Development and expansion of high-vacuum technologies for creating new nanostructured magnesium alloys with improved characteristics popup.stage_title Head Papirov Igor Isakovich, Registration Date 09-03-2016 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Developed a laboratory technology sublimation of obtain ultrapure magnesium , which is characterized by relative a value of the residual resistivity - R300/R4,2 = 1800 - with a content of impurities are limited at the level of (1...3) 10-4% . The technology is based on the triple repeated sublimation of magnesium in high vacuum, which allows to obtain 80% of a suitable material for each step. The character of distribution of impurities on the thickness at sublimates magnesium different purity was studied. It was found existence in a freeze-dried material the barrier layer thickness ? <2 microns, wherein the content of impurities on the surface in 2-600 times more the impurity content in the residue (for different impurities: Mn - 2 times, Cr - 2 times, Si - 4 , Zn - 5 times, Al - 8 times, Cu - 10 times, P - 20 times, Fe - 30 times, Ca - 50 times, Cl - 70 times, S - 300 times, K - 600 times). It was shown that the sublimation of magnesium is a complex physical-chemical process with a significant chemical interaction in the system of magnesium-impurities, resulting in a strong contrast to the values of the effective and ideal separation factors for all of recorded impurities. Product Description popup.authors Ємлянінова Т.Г. Биковський А. Кисляк І.Ф. Ковтеба О.Г. Кондратов А.А. Кравченко О.І. Кутній К.В. Ляшенко О.А.. Мазін О.І. Пікалов А.І. Панов В.А. Рудичева Т.Ю. Стоєв П.І. Тихоновська Т.М. Тихоновський М.А. Шокуров А.В. Шокуров В.С. popup.nrat_date 2020-04-02 Close