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Abstract <p>Stoichiometric mixtures of Bi<sub>2</sub>O<sub>3</sub>, Eu<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub> substituted Bi<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11504_2025_6219_Article_IEq1.gif" Format="GIF" Height="11" Rendition="HTML" Resolution="72" Type="Linedraw" Width="25" /> </InlineMediaObject> <EquationSource Format="TEX">\(_{{4 - x}}\)</EquationSource> <!--PhysChA2570114Vasilev-m1--> </InlineEquation>Eu<sub><i>x</i></sub>Ti<sub>3</sub>O<sub>12</sub> (<i>x</i> = 0.4, 0.8, 1.2, 1.6, and 2.0) titanates are obtained by firing in air at temperatures of 1003–1323 K. Their crystal structure is determined via X-ray diffraction. Their high-temperature heat capacity is measured by means of differential scanning calorimetry. Thermodynamic properties of the titanates are calculated according to experimental data on <i>C</i><sub><i>p</i></sub> <i>= f</i>(<i>T</i>).</p>

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High-Temperature Heat Capacity and Thermodynamic Properties of Bi4–xEuxTi3O12

  • 期刊论文

  • 发表日期：

    2025年8月3日

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  • G. V. Vasiliev,
  • L. T. Denisova,
  • V. A. Tikhanova,
  • V. M. Denisov

摘要

Abstract

Stoichiometric mixtures of Bi2O3, Eu2O3, and TiO2 substituted Bi \(_{{4 - x}}\) EuxTi3O12 (x = 0.4, 0.8, 1.2, 1.6, and 2.0) titanates are obtained by firing in air at temperatures of 1003–1323 K. Their crystal structure is determined via X-ray diffraction. Their high-temperature heat capacity is measured by means of differential scanning calorimetry. Thermodynamic properties of the titanates are calculated according to experimental data on Cp = f(T).