La2Hf2O7 Crystal and Local Structure Changes on the Fluorite - Pyrochlore Phase Transition Full article
| Conference |
Международная конференция «Плазменные, лазерные исследования и технологии» (ПЛИТ 2016) 25-27 Jan 2016 , Москва |
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| Journal |
Journal of Physics: Conference Series
ISSN: 1742-6588 , E-ISSN: 1742-6596 |
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| Output data | Year: 2016, Volume: 747, Article number : 012043, Pages count : 4 DOI: 10.1088/1742-6596/747/1/012043 | ||||
| Tags | NANOCRYSTALLINE STRUCTURES; Ln2Hf2O7; Dy; Ln; FEATURES; SYSTEMS; Gd | ||||
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Abstract:
The process of La2Hf2O7 (rLa3+/rHf4+ = 1.63) nanocrystals formation and evolution upon calcinations up to 1400 °C has been investigated by means of synchrotron radiation X-ray diffraction (XRD) and Raman spectroscopy. It has been shown that isothermal calcination at 800 °C/3h of the X-ray amorphous precursor firstly leads to the formation of oxide nanocrystalline powders with a defect fluorite structure. In the temperature range 900 - 1000 °C we observed the nucleation and growth of pyrochlore nanodomains inside a well crystalline fluorite matrix. The pyrochlore-type superstructural ordering of cations and anions appears at calcinations temperature higher than 1000 °C.
Cite:
Popov V.V.
, Menushenkov A.P.
, Yastrebtsev A.A.
, Zubavichus Y.V.
La2Hf2O7 Crystal and Local Structure Changes on the Fluorite - Pyrochlore Phase Transition
Journal of Physics: Conference Series. 2016.
V.747. 012043
:1-4. DOI: 10.1088/1742-6596/747/1/012043
WOS
Scopus
РИНЦ
AN
OpenAlex
La2Hf2O7 Crystal and Local Structure Changes on the Fluorite - Pyrochlore Phase Transition
Journal of Physics: Conference Series. 2016.
V.747. 012043
:1-4. DOI: 10.1088/1742-6596/747/1/012043
WOS
Scopus
РИНЦ
AN
OpenAlex
Files:
Full text from publisher
Dates:
| Submitted: | Sep 1, 2016 |
| Published print: | Sep 1, 2016 |
| Published online: | Sep 21, 2016 |
Identifiers:
| Web of science: | WOS:000387066400043 |
| Scopus: | 2-s2.0-84992079424 |
| Elibrary: | 27583669 |
| Chemical Abstracts: | 2017:1942619 |
| OpenAlex: | W2521357473 |