Synthesis and High-Temperature Heat Capacity of Sm 2 Ge 2 O 7  and Eu 2 Ge 2 O 7

L. T. Denisova; L. A. Irtyugo; Yu. F. Kargin; V. V. Beletskii; N. V. Belousova; V. M. Denisov

doi:10.1134/S0020168518020048

Synthesis and High-Temperature Heat Capacity of Sm₂Ge₂O₇ and Eu₂Ge₂O₇

作者: Denisova L.T.¹, Irtyugo L.A.¹, Kargin Y.F.², Beletskii V.V.¹, Belousova N.V.¹, Denisov V.M.¹
隶属关系:
1. Institute of Nonferrous Metals and Materials Science
2. Baikov Institute of Metallurgy and Materials Science
期: 卷 54, 编号 2 (2018)
页面: 167-170
栏目: Article
URL: https://journals.rcsi.science/0020-1685/article/view/158408
DOI: https://doi.org/10.1134/S0020168518020048
ID: 158408

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The Sm₂Ge₂O₇ and Eu₂Ge₂O₇ germanates have been prepared by solid-state reactions via multistep firing of stoichiometric mixtures of Sm₂O₃ (Eu₂O₃) and GeO₂ in air at temperatures from 1273 to 1473 K. The molar heat capacity of the samarium and europium germanates has been determined by differential scanning calorimetry in the range 350–1000 K and the C_p(T) data have been used to evaluate their thermodynamic properties.