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

共 50 条

[21] Multifunctional material Bi4Ge3O12: thermodynamic properties
Matskevich, Nata I.
Borovlev, Yurii A.
Shlegel, Vladimir N.
Semerikova, Anna N.
Matskevich, Mariya Yu.
Anyfrieva, Olga I.
MENDELEEV COMMUNICATIONS, 2022, 32 (05) : 691 - 692
[22] High Temperature Heat Capacity and Thermodynamic Properties of Tm2Ge2O7 and TmInGe2O7 in the Region of 350–1000 K
L. T. Denisova
L. A. Irtyugo
N. V. Belousova
V. V. Beletskii
V. M. Denisov
Russian Journal of Physical Chemistry A, 2019, 93 : 598 - 601
[23] Heat Capacity and Thermodynamic Properties of SmFeGe2O7 in the Range 350–1000 K
L. T. Denisova
A. D. Izotov
Yu. F. Kargin
L. A. Irtyugo
V. V. Beletskii
N. V. Belousova
V. M. Denisov
Doklady Physical Chemistry, 2019, 487 : 109 - 112
[24] Thermal conductivity, heat capacity, and thermodynamic functions of the Bi4Ge3O12 single crystal
Popov, P. A.
Moiseev, N. V.
Shlegel', V. N.
Ivannikova, N. V.
PHYSICS OF THE SOLID STATE, 2010, 52 (09) : 1855 - 1858
[25] Thermal conductivity, heat capacity, and thermodynamic functions of the Bi4Ge3O12 single crystal
P. A. Popov
N. V. Moiseev
V. N. Shlegel’
N. V. Ivannikova
Physics of the Solid State, 2010, 52 : 1855 - 1858
[26] Heat Capacity and Thermodynamic Functions of DyInGe2O7 and HoInGe2O7 Germanates in the Temperature Range 350-1000 K
Denisova, L. T.
Irtyugo, L. A.
Kargin, Yu F.
Beletskii, V. V.
Belousova, N., V
Denisov, V. M.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2019, 64 (09) : 1161 - 1164
[27] High Temperature Heat Capacity and Thermodynamic Properties of Tm2Ge2O7 and TmInGe2O7 in the Region of 350-1000 K
Denisova, L. T.
Irtyugo, L. A.
Belousova, N., V
Beletskii, V. V.
Denisov, V. M.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2019, 93 (03) : 598 - 601
[28] Heat Capacity and Thermodynamic Properties of SmFeGe2O7 in the Range 350-1000 K
Denisova, L. T.
Izotov, A. D.
Kargin, Yu. F.
Irtyugo, L. A.
Beletskii, V. V.
Belousova, N. V.
Denisov, V. M.
DOKLADY PHYSICAL CHEMISTRY, 2019, 487 (2) : 109 - 112
[29] Synthesis and crystal structures of CaY2Ge3O10 and CaY2Ge4O12
Yamane, H
Tanimura, R
Yamada, T
Takahashi, J
Kajiwara, T
Shimada, M
JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (01) : 289 - 295
[30] CRYSTAL STRUCTURE OF NA4SN2GE4O12(OH)4
CHRISTEN.AN
ACTA CHEMICA SCANDINAVICA, 1970, 24 (04): : 1287 - &

← 1 2 3 4 5 →