Record Details

Title:
Specific features of the crystal and local structures of compounds formed in the $Dy_{2}O_{3}$–$HfO_{2}$ system
Affiliation(s):
EuXFEL staff
Author group:
Instrument SCS
Topic:
Abstract:
The crystal and local structures of compounds formed in the $Dy2O_{3}–HfO_{2}$ system (at molar ratios from 1: 3 to 3: 1) in the course of isothermal annealing of X-ray amorphous mixed hydroxides at temperatures up to 1600°C have been studied. At the molar ratio $Dy2O_{3}$: $HfO_{2}$ from 1: 3 to 1: 1, crystallization leads to formation of single-phase defect fluorite solid solutions $nDy2O3$ ∙ $mHfO_{2}$ with clearly pronounced nonequivalence of parameters of local environment of $Dy^{3+}$ and $Hf^{4+}$ cations. It has been found that $Dy{2}H_{2}O_{7}$ ($Dy_{2}O_{3}$: $HfO_{2}$ = 1: 2) samples have a tendency to pyrochlore-type ordering in both the cationic and anionic sublattices. Original Russian Text © V.V. Popov, A.P. Menushenkov, Ya.V. Zubavichus, A.A. Yaroslavtsev, D.S. Leshchev, E.S. Kulik, A.A. Yastrebtsev, A.A. Pisarev, S.A. Korovin, N.A. Tsarenko, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 9, pp. 1192–1200.
Imprint:
2016
Journal Information:
Russian Journal of Inorganic Chemistry, 61 (9), 1135–1143 (2016)
Related external records:
Language(s):
English


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 Record created 2016-12-05, last modified 2019-01-30


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