Obtaining of crystals of polyelemental solid solutions of rare earth hexaborides
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- 作者：K. M. Makeev ; V. N. Gurin ; L. I. Derkachenko ; M. P. Volkov…
- 刊名：Technical Physics Letters
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：42
- 期：1
- 页码：1-3
- 全文大小：78 KB
- 参考文献：1.V. Petrosyan, V. Vardanyan, V. Kuzanyan, M. Konovalov, V. Gurin, and A. Kazanyan, Solid State Sci. 14, 1653 (2012).ADS CrossRef
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6.M. V. Konovalov, K. M. Makeev, V. N. Gurin, L. I. Derkachenko, U. Burkhardt, and Yu. Grin’, Abstracts of Papers, The 7th International Scientific Conference “Kinetics and Mechanisms of Crystallization”em> (September 25–28, 2012, Ivanovo, 2012), p. 100. - 作者单位：K. M. Makeev (1)
V. N. Gurin (1)
L. I. Derkachenko (1)
M. P. Volkov (1)
A. S. Kuzanyan (2)
A. A. Kuzanyan (2)
T. B. Popova (1)
E. V. Ivanova (1)
1. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia
2. Institute for Physical Research, National Academy of Sciences of Armenia, 0203, Ashtarak, Armenia - 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Mechanics, Fluids and Thermodynamics
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1090-6533
文摘
Single crystals of polyelemental rare earth hexaborides with the preset formula La0.5(Ce0.1Pr0.1Nd0.1Sm0.1Eu0.1)B6 were obtained for the first time. Synthesis and crystallization were performed by the solution–melt method in an immiscible Al/Pb system. Step-by-step chemical analysis was made with the aid of a CAMEBAX microprobe. The inclusion of all rare earth metals (REMs) in the hexaboride lattice was proven, and differences in the composition of obtained crystals caused by nonstationarity of the bulk crystallization process were found. The lattice periods of the polyelemental REM hexaborides were found to be smaller than that of hexaboride of lanthanum, the main element of the metal sublattice. The measured microhardness of the new material lies within the range of the microhardness values of hexaborides of all its constituent REMs. Speculations are provided on the peculiarities of the growth mechanism, crystallization, and composition of the obtained crystals.