HEAT CAPACITY AND THERMODYNAMIC PROPERTIES OF LA3TAO7

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Resumo

By relaxation, adiabatic and differential scanning calorimetry methods the molar heat capacity of lanthanum tantalate La3TaO7 of the structural type of weberite has been measured in the temperature range 0–1760 K and the thermodynamic properties have been calculated from the smoothed values of heat capacity: entropy and enthalpy increment, the Gibbs energy of lanthanum tantalate formation from binary oxides in the region of high temperatures was estimated and high stability of La3TaO7 was shown.

Sobre autores

P. Gagarin

Federal State Budgetary Institution of Science N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: gagarin@igic.ras.ru
119991, Moscow, Russia

A. Guskov

Federal State Budgetary Institution of Science N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

119991, Moscow, Russia

V. Guskov

Federal State Budgetary Institution of Science N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

119991, Moscow, Russia

A. Tyurin

Federal State Budgetary Institution of Science N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

119991, Moscow, Russia

K. Gavrichev

Federal State Budgetary Institution of Science N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

119991, Moscow, Russia

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