Structure and morphology of spherical crystalline (Y1 − xEux)2O3 particles

The structure and morphology of monodisperse spherical particles of (Y 1 − x Eu x ) 2 O 3 solid solutions prepared through the low-temperature thermolysis of an amorphous precursor under isothermal conditions ( t = 800°C) have been analyzed in detail in relation to the particle size and composition....

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Bibliographic Details
Published inInorganic materials Vol. 51; no. 1; pp. 51 - 56
Main Authors Bezkrovnyi, O. S., Yermolayeva, Yu. V., Yanovskii, V. V., Dulina, N. A., Prymak, O., Baumer, V. N., Danilenko, N. I., Tolmachev, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2015
Subjects
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Crystalline Block
Monodisperse Spherical Particle
Spherical Particle
Amorphous Precursor
Cation Sublattice
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Summary:The structure and morphology of monodisperse spherical particles of (Y 1 − x Eu x ) 2 O 3 solid solutions prepared through the low-temperature thermolysis of an amorphous precursor under isothermal conditions ( t = 800°C) have been analyzed in detail in relation to the particle size and composition. The results demonstrate that, in addition to having a polycrystalline (block) structure, the spherical (Y 1 − x Eu x ) 2 O 3 particles are porous, with a mesoscopic residual pore size. Reducing the diameter of the spherical particles from 400 to 70 nm reduces their porosity and improves their structural perfection. The addition of Eu 3+ cations stimulates the growth of crystalline blocks that form a spherical particle, activating diffusion processes in the cation sublattice of the solid solution.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168515010021