The investigation of the structure control possibility of nanocrystalline yttrium orthoferrite in its synthesis from amorphous powders

The investigation of the structure control possibility of nanocrystalline yttrium orthoferrite in... Mechanism by which nanocrystalline yttrium orthoferrite is formed in thermal treatment of amorphous nanopowders produced by the glycine-nitrate combustion method was studied. It was shown that orthorhombic YFeO3 is formed from the amorphous phase via intermediate formation of a metastable nanocrystalline hexagonal phase of yttrium orthoferrite. The main parameter controlling the process in which the orthorhombic form of YFeO3 is determined. It was demonstrated that YFeO3 crystallizes from an amorphous powder in the hexagonal modification up to nanocrystal sizes of approximately 33 nm and transforms to the orthorhombic phase at larger sizes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

The investigation of the structure control possibility of nanocrystalline yttrium orthoferrite in its synthesis from amorphous powders

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427214100048
Publisher site
See Article on Publisher Site

Abstract

Mechanism by which nanocrystalline yttrium orthoferrite is formed in thermal treatment of amorphous nanopowders produced by the glycine-nitrate combustion method was studied. It was shown that orthorhombic YFeO3 is formed from the amorphous phase via intermediate formation of a metastable nanocrystalline hexagonal phase of yttrium orthoferrite. The main parameter controlling the process in which the orthorhombic form of YFeO3 is determined. It was demonstrated that YFeO3 crystallizes from an amorphous powder in the hexagonal modification up to nanocrystal sizes of approximately 33 nm and transforms to the orthorhombic phase at larger sizes.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Jan 23, 2015

References

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