Heat capacity of rare-earth stannates in the range 350–1000 K

被引：0
|
作者：
L. T. Denisova
Yu. F. Kargin
V. M. Denisov
机构：
[1] Siberian Federal University,Institute of Nonferrous Metals and Materials Science
[2] Russian Academy of Sciences,Baikov Institute of Metallurgy and Materials Science
来源：
Inorganic Materials | 2017年 / 53卷
关键词：
rare-earth stannates; structure; high-temperature heat capacity; thermodynamic functions;
D O I：
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中图分类号：
学科分类号：
摘要：
R2Sn2O7 (R = Pr–Lu) rare-earth stannates with the pyrochlore structure have been synthesized by solid-state reactions, by firing stoichiometric mixtures of SnO2 and R2O3 in air at 1473 K. The high-temperature heat capacity of the rare-earth stannates has been determined by differential scanning calorimetry in the temperature range 350 to 1000 K, and the Raman spectra of polycrystalline Tb2Sn2O7 and Dy2Sn2O7 samples have been measured.
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页码：956 / 961
页数：5
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