Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Sergey V. Ushakov"'
Publikováno v:
Materials, Vol 16, Iss 4, p 1350 (2023)
Thorium was a part of energy infrastructure in the 19th century due to the refractory and electronic properties of its dioxide. It will be a part of future energy infrastructure as the most abundant energy reserve based on nuclear fission. This paper
Externí odkaz:
https://doaj.org/article/d38890e819a947a4a342009393347551
Autor:
Sergey V. Ushakov
Publikováno v:
Материалы по археологии и истории античного и средневекового Крыма, Vol 10, Pp 221-234 (2019)
The article provides a short review of the field archeological researches in the northern part of Quarter XCVII in the North-Easternarea of Chersonesos. The researches were conducted in 2012—2015 at the site of the Medieval Rooms 18А, 18B, 19—22
Externí odkaz:
https://doaj.org/article/a740c18137d346fe9e072267ae2340bd
Autor:
Qi-Jun Hong, Sergey V. Ushakov, Denys Kapush, Chris J. Benmore, Richard J. K. Weber, Axel van de Walle, Alexandra Navrotsky
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
Abstract Structure and thermodynamics of pure cubic ZrO2 and HfO2 were studied computationally and experimentally from their tetragonal to cubic transition temperatures (2311 and 2530 °C) to their melting points (2710 and 2800 °C). Computations wer
Externí odkaz:
https://doaj.org/article/994cd5f41e9b43cbb2500fb8d7e945e6
Autor:
Sergey V. Ushakov, Shmuel Hayun
Publikováno v:
Materials, Vol 14, Iss 17, p 4923 (2021)
The measurement of any physical property as a function of temperature brings the method used into the realm of thermal analysis [...]
Externí odkaz:
https://doaj.org/article/fb291903913b4f12a6f4007edbb6b419
Autor:
Sergey V. Ushakov, Jonas Niessen, Dante G. Quirinale, Robert Prieler, Alexandra Navrotsky, Rainer Telle
Publikováno v:
Materials, Vol 14, Iss 4, p 822 (2021)
Densities of liquid oxide melts with melting temperatures above 2000 °C are required to establish mixing models in the liquid state for thermodynamic modeling and advanced additive manufacturing and laser welding of ceramics. Accurate measurements o
Externí odkaz:
https://doaj.org/article/84cd2e0dbd904595b45898d94cdf3d1f
Publikováno v:
Materials, Vol 13, Iss 14, p 3141 (2020)
Phase transformations in multicomponent rare earth sesquioxides were studied by splat quenching from the melt, high temperature differential thermal analysis and synchrotron X-ray diffraction on laser-heated samples. Three compositions were prepared
Externí odkaz:
https://doaj.org/article/88d19c43daf94fcdab71e956a76eaded
Publikováno v:
Materials, Vol 12, Iss 17, p 2728 (2019)
Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab i
Externí odkaz:
https://doaj.org/article/ddf9024e16824e2f9a0f8a7d84e2e28e
Publikováno v:
Материалы по археологии и истории античного и средневекового Крыма, Vol 3, Pp 21-34 (2011)
In this article consider results of excavation of the basilica Kryze in 2010 year. In central nave of temple dug up cultural layers of the end 5-th till the middle 6-th centuries A.D. and were found pits of late antiquity pifosarium with bottoms of v
Externí odkaz:
https://doaj.org/article/3d10b2f8a34b4697aaad7b25b5a907dd
Autor:
Sergey V. Ushakov, E.V. Strukova
Publikováno v:
Материалы по археологии и истории античного и средневекового Крыма, Vol 3, Pp 9-20 (2011)
In recent years, in the course of archaeological research XCVII quarter of the Northeast region of Chersonese were discovered and documented the remains of the ancient wine-making industry. The paper considers the question of the date of termination
Externí odkaz:
https://doaj.org/article/52eea7c31cf648d89ccb0af9761d2d11
Autor:
Sergey V. Ushakov
Publikováno v:
Материалы по археологии и истории античного и средневекового Крыма, Iss 2, Pp 7-26 (2009)
The aim of the research was to study the ancient pottery found during excavations of the territory of the "Basilica in 1935". I believe that this material can be used to create a chronological scale ceramics from Chersonesos and its modern archeologi
Externí odkaz:
https://doaj.org/article/07fcc5d850d74b339b03ccbdd75f440e