Conclusions
Samarium hexaboride of the limiting composition, SmB6, possesses the maximum chemical activity in relation to sulfuric and hydrochloric acids.
Lanthanum hexaboride of the limiting composition, LaB6, is the most resistant to the action of acids. The samples with a lower lanthanum content dissolve in the acids to a significantly greater degree.
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R. W. Johnson and A. H. Daane, “System La-B,” J. Phys. Chem.,65, No. 6, 909–915 (1961).
K. Niihara, “The preparation and nonstoichiometry of samarium hexaboride,” Bul. Chem. Soc. Jpn.,44, No. 4, 963–967 (1971).
M. I. Aivazov, S. V. Aleksandrovich, B. A. Evseev, and V. M. Sorokin, “Isostructural phases of samarium hexaboride,” Izv. Akad. Nauk SSSR, Neorg. Mater.,16, No. 1, 59–61 (1980).
G. V. Samsonov, The Analysis of Refractory Compounds [in Russian], Cos. Nauch.-Tekh. Izd. Lt. po Chern. i Tsvet. Met., Moscow (1962).
L. N. Kugai and T. N. Nazarchuk, “The analysis of borides of transition and rare-earth metals,” Zh. Anal. Khim., No. 1, 205 (1961).
Yu. B. Paderno, E. S. Konovalova, N. A. Baturinskaya, et al., “The valence state of samarium in metal-deficient phases of SmB,” Izv. Akad. Nauk SSSR, Neorg. Mater.,18, No. 1, 47–49 (1982).
E. M. Dudnik, Yu. B. Paderno, T. N. Nazarchuk, et al., “The failure process of sintered parts of technical purity lanthanum hexaboride powder,” Poroshk. Metal., No. 4, 56–60 (1981).
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Translated from Poroshkovaya Metallurgiya, No. 3(255), pp. 84–88, March, 1984.
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Nazarchuk, T.N., Dudnik, E.M., Paderno, Y.B. et al. Interaction of lanthanum and samarium hexaborides with acids in the area of homogeneity. Powder Metall Met Ceram 23, 242–245 (1984). https://doi.org/10.1007/BF00791812
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DOI: https://doi.org/10.1007/BF00791812