Phase transitions and ion conductivity in NASICON-type compounds Li 1±XZr2-XMX(PO4)3, M = Ta, Nb, Y, Sc, In

I. A. Stenina*, M. N. Kislitsyn, I. Yu Pinus, S. M. Haile, A. B. Yaroslavtsev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Ionic conductivity and phase transitions of lithium-zirconium phosphates, Li1±XZr2- XMX(PO 4)3 (M = Ta, Nb, Y, Sc, In), with NASICON structure were studied using X-ray powder diffraction, calorimetry, 31P and 7Li NMR and impedance spectroscopy. Triclinic-rhombohedral phase transition in these materials occurs in a wide temperature range at coexistence of both phases. Unusual change of LiZr2(PO4)3 lattice parameters with temperature increase was found. During heating of this compound parameter "a" significantly decreases.

Original languageEnglish (US)
Pages (from-to)255-262
Number of pages8
JournalDefect and Diffusion Forum
Volume249
DOIs
StatePublished - Jan 1 2006

Keywords

  • Heterovalent doping
  • Ionic conductivity
  • Lithium zirconium phosphate
  • NASICON
  • Phase transitions

ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

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