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Phase Transitions in Perovskite Phases of Strontium Silicoantimonates

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Abstract:

The paper presents the results of the study of phase transitions in the system Sr-Sb-Si-O by means of X-ray diffraction, thermal analysis, dielectric spectroscopy. Four effects are observed in the interval from room temperature to 800°C. The first and last are chemical transformations due to dehydration and loss of oxygen, respectively. The second is a transition from tetragonal to cubic perovskite structure, and the third is disordering transition in oxygen sublattice possibly due to the desorption of structural water molecules

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Periodical:

Materials Science Forum (Volume 845)

Pages:

34-37

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.845.34

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Online since:

March 2016

Authors:

Yulia N. Kuryleva, Olga A. Chalaya, Dmitry Zakharyevich

Keywords:

Antimonates, Perovskite, Phase Transition, Silicates

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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References

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