Features of the structure, dielectric and conductive properties of polycrystals Na3Fe2 (PO4)3 and Na3FeTi(PO4)3

Authors

  • A.A. Nogai Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • E.A. Nogai Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • D.D. Aikimbayeva Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • A.S. Nogai Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • G.G. Tatkeeva Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • N.F. Zikrillaev Islam Karimov Tashkent State Technical University, Tashkent, Uzbekistan Author
  • A.B. Utegulov Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • O.N. Leznaya Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author
  • V.A. Dyakov Energy Institute of the Saken Seifullin Kazakh Agrotechnical University, Astana, Kazakhstan Author

DOI:

https://doi.org/10.32523/ejpfm.2026100305

Keywords:

melt synthesis, polycrystals, structure, dielectric and conductive properties, sodium cations

Abstract

This article presents the results of a study into the structure, dielectric and conductive properties of Na3Fe2(PO4)3 and Na3FeTi(PO4)3 , obtained by the melt synthesis method. It has been established that Na3FeTi(PO4)3 forms in the β -phase with hexagonal symmetry (sp. gr. P3¯c ), in contrast to α - Na3Fe2(PO4)3 , which possesses a rhombohedral monoclinic distorted structure. Consequently, β -Na3FeTi(PO4)3 is an ionic conductor and is capable of being easily polarised and exhibiting ionic conductivity. In contrast, α - Na3Fe2(PO4)3 exhibits dielectric properties, as the majority of the cation sublattice is dipole-ordered, whilst the remainder is structurally ordered. The fact that β - Na3FeTi(PO4)3 polycrystals have higher conductivity at room temperature than α - Na3Fe2(PO4)3 suggests that they may be more promising for use as a cathode material.

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Published

2026-09-27

Issue

Vol. 10 No. 3 (2026): Volume 10, Number 3 (2026)

Section

Articles

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How to Cite

(1)
Nogai, A.; Nogai, E.; Aikimbayeva, D.; Nogai, A.; Tatkeeva, G.; Zikrillaev, N.; Utegulov, A.; Leznaya, O.; Dyakov, V. Features of the Structure, Dielectric and Conductive Properties of Polycrystals Na3Fe2 (PO4)3 and Na3FeTi(PO4)3. Eur. J. Phys. Funct. Mater. 2026, 10 (3), 260-268. https://doi.org/10.32523/ejpfm.2026100305.