Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Stanislav Hryhoriev"'
Autor:
Olexandr Sklyar, Viacheslav Borysov, Artem Petryshchev, Sergey Kvitka, Alina Yurchenko, Bohdan Tsymbal, Svitlana Borysova, Nina Sinyaeva, Valerii Vlasiuk, Stanislav Hryhoriev
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 4:43-48
Досліджено особливості фазового складу та мікроструктури шлаків алюмотермічного виробництва лігатур тугоплавких елементів різних ма
Autor:
Stanislav Hryhoriev, Artem Petryshchev, Nina Sinyaeva, Alina Yurchenko, Olexandr Sklyar, Sergey Kvitka, Viacheslav Borysov, Valerii Vlasiuk, Bohdan Tsymbal, Svitlana Borysova
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 12 (94), Pp 43-48 (2018)
Досліджено особливості фазового складу та мікроструктури шлаків алюмотермічного виробництва лігатур тугоплавких елементів різних ма
Autor:
Oleksandr Frydman, Tetyana Zaytseva, Kristina Krupey, Andrey Andreev, Dmytro Stepanov, Yuliya Petrusha, Artem Petryshchev, Alexander Katschan, Ganna A. Shyshkanova, Stanislav Hryhoriev
Publikováno v:
Eastern-European Journal of Enterprise Technologies, Vol 1, Iss 10 (91), Pp 44-49 (2018)
The study has revealed the regularities of the effect produced by increasing the content of scale of steel 12Cr18Ni10Ti in the charge from 5 to 75 mass % on the contents of the products of carbon thermal reduction of oxide waste of corrosion-resistan
Autor:
Kristina Krupey, Alexander Katschan, Nataliia Berenda, Anton Matiukhin, Dmytro Stepanov, Andrey Andreev, Artem Petryshchev, Yevheniia Manidina, Stanislav Hryhoriev, Vadim Ryzhkov
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 6:35-40
The study has determined an increase of the degree of thermal carbon extraction of the molybdenum oxide concentrate from 11 % to 97 % with an increase in the processing temperature from 873 K to 1373 K, respectively. A further rise in temperature to
Autor:
Andrii Semenchuk, Artem Petryshchev, Stanislav Hryhoriev, Olga Sergienko, Oleksandr Frydman, Elena Usenko, Tetyana Zaytseva, Olga Berezhnaya, Andrii Ivanchenko, Ganna A. Shyshkanova
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 6:45-50
We studied kinetic patterns of hydrogen reduction of the scale of a nickel-cobalt containing precision alloy at a temperature of 673‒1573 K over a period from 0 to 180 minutes. The highest degree of reduction was achieved after thermal treatment at
Autor:
Artem Petryshchev, Mykhail Yamshinskij, Oksana Shcherbyna, Yaroslav Chumachenko, Olena Mizerna, Andriy Kovalyov, Stanislav Hryhoriev, Ganna A. Shyshkanova, Yevgen Goliev, Grigoriy Fedorov
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 5:34-38
We explored kinetic patterns of hydrogen reduction of the scale of a nickelmolybdenum containing precision alloy at a temperature of 673 ‒ 1573 K over the interval from 0 to 360 min. The largest degree of reduction is achieved after thermal treat
Autor:
Stanislav Hryhoriev, Sergiy Zhuravel, Grigoriy Fedorov, Ganna A. Shyshkanova, Mykhail Yamshinskij, Oleksii Shevchenko, Yurii Yakimtsov, Yevgen Goliev, Dmytro Kruglyak, Artem Petryshchev
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 4:38-43
It was determined that the original oxide chromium-containing ore raw material is represented by granules of rounded shape the size of 250–600 µm. Along with Cr and Fe, it revealed Mg, Al, Si, Ca, and Ti. They probably were included in the composi
Autor:
Artem Petryshchev, Oleksandr Frydman, Olena Mizerna, Tetyana Zaytseva, Ganna A. Shyshkanova, Stanislav Hryhoriev, Olena L. Skuibida
Publikováno v:
Eastern-European Journal of Enterprise Technologies. 3:18-23
We established that the phase composition of oxide molybdenum concentrate is re presented mainly by MoO3, as well as МоО2, WO3, Mo2C and associated ore impurities of Al2O3, CaO, SiO2 and MgO. We found non-uniform microstructure in the form of plat
Publikováno v:
Eastern-European Journal of Enterprise Technologies; Том 4, № 12 (100) (2019): Materials Science; 31-36
Восточно-Европейский журнал передовых технологий; Том 4, № 12 (100) (2019): Материаловедение; 31-36
Східно-Європейський журнал передових технологій; Том 4, № 12 (100) (2019): Матеріалознавство; 31-36
Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 12 (100), Pp 31-36 (2019)
Восточно-Европейский журнал передовых технологий; Том 4, № 12 (100) (2019): Материаловедение; 31-36
Східно-Європейський журнал передових технологій; Том 4, № 12 (100) (2019): Матеріалознавство; 31-36
Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 12 (100), Pp 31-36 (2019)
X-ray diffraction phase analysis of samples performed on a DRON-6 diffractometer has shown that the processes of CaWO4 transition to WC and W2C had the highest probability in the temperature range of 1,173–1,473 K. The end-product CaWO4, thermally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89822429265a5d07ac82aa6a29bf6807
https://zenodo.org/record/3466430
https://zenodo.org/record/3466430
Autor:
Alexander Stepanenko, Gennadii Kozhemiakin, Dmitry Milko, Nataliia Berenda, Artem Petryshchev, Stanislav Hryhoriev, Olga Sergienko, Vadim Ryzhkov, Yevheniia Manidina, Oksana Shcherbyna
Publikováno v:
Eastern-European Journal of Enterprise Technologies; Том 1, № 12 (91) (2018): Materials Science; 4-9
Восточно-Европейский журнал передовых технологий; Том 1, № 12 (91) (2018): Материаловедение; 4-9
Східно-Європейський журнал передових технологій; Том 1, № 12 (91) (2018): Матеріалознавство; 4-9
Eastern-European Journal of Enterprise Technologies, Vol 1, Iss 12 (91), Pp 4-9 (2018)
Восточно-Европейский журнал передовых технологий; Том 1, № 12 (91) (2018): Материаловедение; 4-9
Східно-Європейський журнал передових технологій; Том 1, № 12 (91) (2018): Матеріалознавство; 4-9
Eastern-European Journal of Enterprise Technologies, Vol 1, Iss 12 (91), Pp 4-9 (2018)
It was determined that the oxidic tungsten concentrate is represented basically by CaWO4. Other phases have a fragmentary manifestation with a low intensity of the corresponding diffraction peaks. Microstructure is heterogeneous, disordered. Particle