Synthesis, crystal structure and high-temperature heat capacity of substituted apatites Pb9R(GeO4)3(VO4)3 (R=Tb, Dy, Ho)


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.

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Журнал: Physics of the Solid State

Выпуск журнала: Vol. 64, Is. 11

Номера страниц: 1621-1625

ISSN журнала: 10637834


  • Denisova L. T. (Siberian Federal University, Krasnoyarsk, Russia)
  • Molokeev M. S. (L.V. Kirensky Institute of Physics SB RAS, 660036 Krasnoyarsk, Russian Federation; Siberian Federal University, Krasnoyarsk, Russia)
  • Golubeva E. O. (Siberian Federal University, Krasnoyarsk, Russia)
  • Belousova N. V. (Siberian Federal University, Krasnoyarsk, Russia)
  • Denisov V. M. (Siberian Federal University, Krasnoyarsk, Russia)

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