Тип публикации: статья из журнала
Год издания: 2022
Идентификатор DOI: 10.21883/PSS.2022.11.54182.353
Ключевые слова: apatites, solid-phase synthesis, crystal structure, heat capacity, thermodynamic properties
Аннотация: Pb9R(GeO4)3(VO4)3 (R=Tb, Dy, Ho) apatites were obtained by solid-phase synthesis from the initial oxides of PbO, Tb2O3 (Dy2O3, Ho2O3), GeO2 and V2O5 by sequential annealing (at a temperature of 773-1073 K) in an air atmosphere. Their crystal structure has been determined by X-ray diffraction analysis. The high-temperature heat capaПоказать полностьюcity was measured by differential scanning calorimetry. Based on the experimental dependence of the heat capacity on the temperature, the thermodynamic properties are calculated.
Журнал: Physics of the Solid State
Выпуск журнала: Vol. 64, Is. 11
Номера страниц: 1621-1625
ISSN журнала: 10637834