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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
- Source :
- Inorganic Materials; Aug2022, Vol. 58 Issue 8, p831-837, 7p
- Publication Year :
- 2022
-
Abstract
- Pb<subscript>10 –</subscript><subscript>x</subscript>Sm<subscript>x</subscript>(GeO<subscript>4</subscript>)<subscript>2 +</subscript><subscript>x</subscript>(VO<subscript>4</subscript>)<subscript>4 –</subscript><subscript>x</subscript> (x = 0.2, 0.5, 0.7, 1.0) compounds with the apatite structure have been synthesized by firing appropriate mixtures of the PbO, Sm<subscript>2</subscript>O<subscript>3</subscript>, GeO<subscript>2</subscript>, and V<subscript>2</subscript>O<subscript>5</subscript> 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00201685
- Volume :
- 58
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Inorganic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 159685254
- Full Text :
- https://doi.org/10.1134/S0020168522070081