Journal of Thermal Analysis and Calorimetry

, Volume 133, Issue 1, pp 199–205 | Cite as

Thermal expansion of phosphate–sulfates of eulytite structure

  • V. I. Pet’kov
  • A. S. Dmitrienko
  • A. I. Bokov
Article
  • 52 Downloads

Abstract

New phosphate–sulfates of the next chemical formulae ASr2Eu(PO4)2SO4 (A = K, Rb, Cs), NaBa6Zr(PO4)5SO4, Pb2Mg2(PO4)2SO4, and BaxSr4−x(PO4)2SO4 (0 ≤ x ≤ 4) have been designed and synthesized with the aim of investigating their thermal expansion properties in the low-temperature region. Obtained samples have been characterized with X-ray, IR, DTA, and microprobe electron analyses. Crystal structure and unit cell parameters were derived from the least-squares refinement of powder X-ray diffraction data (eulytite-type, sp. gr. \(I 4 {\bar{\text{3}}}d\)). The magnitudes of average linear thermal expansion coefficients vary from 1.1 × 10−5 to 1.7 × 10−5 K−1, which is conducive for application in optics and electronics.

Graphical Abstract

Keywords

Phosphate–sulfates Aqueous solutions chemistry X-ray diffraction Eulytite crystal structure Thermal expansion 

Notes

Acknowledgements

The present work was performed at the Lobachevsky State University of Nizhni Novgorod with the financial support of the Russian Foundation for Basic Research (Project No. 18-03-00043).

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2017

Authors and Affiliations

  • V. I. Pet’kov
    • 1
  • A. S. Dmitrienko
    • 1
  • A. I. Bokov
    • 1
  1. 1.Lobachevsky State University of Nizhni NovgorodNizhni NovgorodRussia

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