High-temperature heat capacity of samarium and erbium titanates with pyrochlore structure

Titanates Sm 2 Ti 2 O 7 and Er 2 Ti 2 O 7 with pyrochlore structure have been prepared by solid-phase synthesis in air from stoichiometric Sm 2 O 3 (Er 2 O 3 )–TiO 2 mixtures sequentially at 1673 and 1773 K. Hightemperature heat capacity of the oxide compounds has been determined by differential sca...

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Published inPhysics of the solid state Vol. 59; no. 12; pp. 2321 - 2324
Main Authors Denisova, L. T., Chumilina, L. G., Denisov, V. M., Ryabov, V. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2017
Springer
Springer Nature B.V
Subjects
CALORIMETRY
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Erbium
ERBIUM COMPOUNDS
Erbium oxide
ERBIUM OXIDES
MIXTURES
Physics
Physics and Astronomy
PYROCHLORE
Rare earth metal compounds
Samarium
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
Semiconductors
Solid phase synthesis
Solid State Physics
SOLIDS
SPECIFIC HEAT
STOICHIOMETRY
SYNTHESIS
TEMPERATURE DEPENDENCE
Thermodynamic properties
THERMODYNAMICS
TITANATES
Titanium oxides
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Summary:Titanates Sm 2 Ti 2 O 7 and Er 2 Ti 2 O 7 with pyrochlore structure have been prepared by solid-phase synthesis in air from stoichiometric Sm 2 O 3 (Er 2 O 3 )–TiO 2 mixtures sequentially at 1673 and 1773 K. Hightemperature heat capacity of the oxide compounds has been determined by differential scanning calorimetry. Their thermodynamic properties have been calculated from experimental temperature dependence C p = f ( T ).
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783417120113