Heat Capacity and Thermodynamic Properties of Germanates CaGd2Ge4O12 and CaDy2Ge4O12 in the Range of 320-1000 K

被引：0

作者：

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

Belokopytova, D. V. ^{[1
]}

Vasil'ev, G. V. ^{[1
]}

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

Golubeva, E. O. ^{[1
]}

机构：

[1] Siberian Fed Univ, Krasnoyarsk, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2024年 / 98卷 / 08期

关键词：

gadolinium and dysprosium calcium germanates; differential scanning calorimetry; high-temperature heat capacity; thermodynamic properties; CRYSTAL-STRUCTURE; PR; MN; LN;

D O I：

10.1134/S0036024424700675

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The germanates CaGd2Ge4O12 and CaDy2Ge4O12 were synthesized from CaO, Gd2O3 (Dy2O3), and GeO2 by the standard ceramic technology. Their crystal structure was refined by X-ray diffraction analysis. The high-temperature heat capacity was measured in the temperature range 320-1000 K using differential scanning calorimetry. Their thermodynamic functions were calculated from the experimental dependences C-p= f(T).

引用

页码：1643 / 1647

页数：5

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