Synthesis and High-Temperature Thermodynamic Properties of InFeGe2O7and GdFeGe2O7

被引：2

作者：

Denisova, L. T. ^{[1
]}

Irtyugo, L. A. ^{[1
]}

Kargin, Yu F. ^{[2
]}

Beletskii, V. V. ^{[1
]}

Belousova, N., V ^{[1
]}

Denisov, V. M. ^{[1
]}

机构：

[1] Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Krasnoyarsk 660041, Russia

[2] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2020年 / 65卷 / 07期

关键词：

Fe-In and Fe-Gd germanates; solid-phase synthesis; differential scanning calorimetry; thermodynamic properties; HEAT-CAPACITY; CRYSTAL-STRUCTURE; NEUTRON-DIFFRACTION; GERMANATES; FERGE(2)O(7); R=LA; PR;

D O I：

10.1134/S0036023620070049

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Germanates InFeGe(2)O(7)and GdFeGe(2)O(7)have been produced in the form of polycrystalline powders from stoichiometric mixtures of In2O3(Gd2O3), Fe2O3, and GeO(2)by solid-phase synthesis. Calcination was carried out in air in the temperature range 1273-1473 K. The high-temperature heat capacities of these oxide compounds have been measured using differential scanning calorimetry. The resulting experimentalC(p) = f(T) data were used to calculate the thermodynamic functions (the enthalpy and entropy changes) of the investigated Fe-In and Fe-Gd germanates.

引用

页码：955 / 959

页数：5

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