Heat Capacity and Thermodynamic Functions of GdGaTi2O7 in the Temperature Range of 320–1000 K

Titanate GdGaTi 2 O 7 has been obtained from the initial oxides Gd 2 O 3 , Ga 2 O 3 , and TiO 2 by the solid-state synthesis via annealing in air at temperatures of 1273 and 1573 K. The crystal structure of the titanate has been refined by X-ray diffraction. The high-temperature (320–1000 K) heat ca...

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Bibliographic Details
Published in:Physics of the solid state 2021-04, Vol.63 (4), p.534-537
Main Authors: Denisova, L. T., Molokeev, M. S., Chumilina, L. G., Ryabov, V. V., Denisov, V. M.
Format: Article
Language:English
Subjects:
Crystal structure
Differential scanning calorimetry
Gadolinium oxides
Gallium oxides
High temperature
Physics
Physics and Astronomy
Solid State Physics
Specific heat
Thermodynamics
Titanium dioxide
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Summary:Titanate GdGaTi 2 O 7 has been obtained from the initial oxides Gd 2 O 3 , Ga 2 O 3 , and TiO 2 by the solid-state synthesis via annealing in air at temperatures of 1273 and 1573 K. The crystal structure of the titanate has been refined by X-ray diffraction. The high-temperature (320–1000 K) heat capacity of the compound has been measured by differential scanning calorimetry. Based on the experimental dependence C p = f ( T ), the main thermodynamic functions of the titanate have been calculated.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783421040065