Synthesis, Crystal Structure, and High-Temperature Heat Capacity of Pb10-xSmx(GeO4)2+x(VO4)4-x (x=0.2, 0.5, 0.7, 1.0) Apatites from 350 to 1000 K

被引：1

作者：

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

Molokeev, M. S. ^{[1
,2
]}

Kargin, Yu F. ^{[3
]}

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

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

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

机构：

[1] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[2] Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch,Fed Res Ctr, Krasnoyarsk 660036, Russia

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

来源：

INORGANIC MATERIALS | 2022年 / 58卷 / 08期

关键词：

solid-state synthesis; crystal structure; apatites; high-temperature heat capacity; thermodynamic properties; THERMODYNAMIC PROPERTIES; LACUNAR APATITE;

D O I：

10.1134/S0020168522070081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pb10 -xSmx(GeO4)(2 +)(x)(VO4)(4 -)(x) (x = 0.2, 0.5, 0.7, 1.0) compounds with the apatite structure have been synthesized by firing appropriate mixtures of the PbO, Sm2O3, GeO2, and V2O5 oxides in air at temperatures from 773 to 1073 K. Their crystal structure has been studied using X-ray diffraction, and their high-temperature heat capacity (350-1000 K) has been determined by differential scanning calorimetry. The data have been used to evaluate their thermodynamic properties.

引用

页码：831 / 837

页数：7

共 27 条

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