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pro vyhledávání: '"Ganna Levchenko"'
Publikováno v:
Solid State Phenomena. 257:152-155
There are studied the HoB12 → HoB4 and TmB12 → TmB4 phase transformations on annealing of the corresponding dodecaborides single crystals up to 1814 K in vacuum . It is shown that at p < 10-4 Pa the HoB12 → HoB4 phase transformation takes place
Publikováno v:
Functional materials. 21:266-273
Results of the LuB₁₂ (100), (110), (111), LuB₄ (001), LuB₂ (001) thermionic properties study in the temperature range T = 1200...1960 K at p ≤ 10⁻⁴ Pa pressure are presented. The correlation between structure and composition of the lute
Autor:
Ganna Levchenko, Anatoliy Taran, Sergiy Abashin, Daniel Voronovich, Volodymyr Filipov, Natalya Shitsevalova
Publikováno v:
Solid State Phenomena. :464-469
The LuB12 ® LuB4 ® LuB2 phase transformations on annealing in vacuum (T=(1400÷1800) K, p < 10-2 Pa) are investigated with use of the parent single crystals. SEM and X-ray researches of the corresponding lutetium boride single crystals were carried