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Synthesis, Structure, and Thermophysical Properties of EuGaGe 2 O 7
Inorganic Materials ( IF 0.9 ) Pub Date : 2020-08-31 , DOI: 10.1134/s002016852008004x L. T. Denisova , M. S. Molokeev , L. A. Irtyugo , V. V. Beletskii , Yu. F. Kargin , V. M. Denisov
中文翻译:
EuGaGe 2 O 7的合成,结构和热物理性质
更新日期:2020-08-31
Inorganic Materials ( IF 0.9 ) Pub Date : 2020-08-31 , DOI: 10.1134/s002016852008004x L. T. Denisova , M. S. Molokeev , L. A. Irtyugo , V. V. Beletskii , Yu. F. Kargin , V. M. Denisov
Abstract
The europium gallium germanate EuGaGe2O7 has been prepared by solid-state reaction in air in the temperature range 1273–1473 K using a stoichiometric mixture of Eu2O3, Ga2O3, and GeO2. Its crystal structure has been determined by X-ray diffraction (sp. gr. P21/c, a = 7.1693(7) Å, b = 6.57008(6) Å, c = 12.7699(1) Å, β = 117.4522(5)°, V = 533.768(8) Å3). The heat capacity of polycrystalline samples has been determined by differential scanning calorimetry in the temperature range 350–1053 K and the experimental data have been used to calculate the thermodynamic properties (enthalpy increment, entropy change, and reduced Gibbs energy change) of EuGaGe2O7.中文翻译:
EuGaGe 2 O 7的合成,结构和热物理性质