Order–Disorder Structural Transformations in Nanocrystalline Highly Imperfect Gd2MO5 (M = Zr and Hf) Fluorite Derivatives Full article
Journal |
Inorganic Materials
ISSN: 0020-1685 , E-ISSN: 1608-3172 |
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Output data | Year: 2018, Volume: 54, Number: 3, Pages: 245-252 Pages count : 8 DOI: 10.1134/s0020168518030093 | ||||||||
Tags | synchrotron X-ray diffraction, Raman spectra, scanning electron microscopy, Gd2ZrO5 and Gd2HfO5 fluorite derivatives, order–disorder structural transformations | ||||||||
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Abstract:
Order–disorder phenomena in nanocrystalline Gd2ZrO5 and Gd2HfO5 with highly imperfect fluorite- derived structures in the range 1000–1600°C have been studied using monochromatic synchrotron X-ray diffraction and Raman spectroscopy. The results demonstrate that the synthesis process leads to the formation of two coherent phases identical in composition: a nanocrystalline disordered fluorite-like (F) phase (Fm3m) and a nanoparticulate ordered fluorite derivative (C1) (Ia3). Their lattice parameters have been determined. In the range 1000–1600°C, the Raman spectra of the Gd2ZrO5 and Gd2HfO5 materials contain broad bands in low- and high-frequency regions, at ~118 (108), 362 (353), and 670 (665) cm–1, which characterize the C1 and F phases, respectively.
Cite:
Lyashenko L.P.
, Shcherbakova L.G.
, Tartakovskii I.I.
, Maksimov A.A.
, Svetogorov R.D.
, Zubavichus Y.V.
Order–Disorder Structural Transformations in Nanocrystalline Highly Imperfect Gd2MO5 (M = Zr and Hf) Fluorite Derivatives
Inorganic Materials. 2018. V.54. N3. P.245-252. DOI: 10.1134/s0020168518030093 WOS Scopus РИНЦ AN OpenAlex
Order–Disorder Structural Transformations in Nanocrystalline Highly Imperfect Gd2MO5 (M = Zr and Hf) Fluorite Derivatives
Inorganic Materials. 2018. V.54. N3. P.245-252. DOI: 10.1134/s0020168518030093 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: | May 5, 2017 |
Accepted: | Sep 22, 2017 |
Published print: | Mar 14, 2018 |
Published online: | Mar 14, 2018 |
Identifiers:
Web of science: | WOS:000427490400006 |
Scopus: | 2-s2.0-85043997024 |
Elibrary: | 35526668 |
Chemical Abstracts: | 2018:453194 |
OpenAlex: | W2791759511 |