High-temperature heat capacity of erbium titanate with a pyrochlore structure

Erbium titanate with a pyrochlore structure has been synthesized by a ceramic method from stoichiometric Er 2 O 3 –TiO 2 mixtures at 1673–1773 K. The high-temperature heat capacity of Er 2 Ti 2 O 7 (320–1000 K) has been studied by differential scanning calorimetry. The thermodynamic functions of thi...

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Bibliographic Details
Published inDoklady. Physical chemistry (1991) Vol. 475; no. 2; pp. 139 - 141
Main Authors Denisova, L. T., Izotov, A. D., Kargin, Yu. F., Chumilina, L. G., Ryabov, V. V., Denisov, V. M.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2017
Springer Nature B.V
Subjects
Ceramics
Chemistry
Chemistry and Materials Science
Differential scanning calorimetry
Enthalpy
Erbium
Heat measurement
Physical Chemistry
Specific heat
Titanium oxides
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Summary:Erbium titanate with a pyrochlore structure has been synthesized by a ceramic method from stoichiometric Er 2 O 3 –TiO 2 mixtures at 1673–1773 K. The high-temperature heat capacity of Er 2 Ti 2 O 7 (320–1000 K) has been studied by differential scanning calorimetry. The thermodynamic functions of this oxide compound—enthalpy and entropy changes and reduced Gibbs—have been calculated from the experimental dependence C P = f ( T ).
ISSN:0012-5016
1608-3121
DOI:10.1134/S0012501617080012