The CsCaF3-x Hx solid solution (0 ≤ x ≤ 1.70): Structural characteristics and hydrogen diffusion investigation

Hyung Ho Park, Jean Senegas, Jean Maurice Reau, Michel Pezat, Bernard Darriet, Paul Hagenmuller

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The investigation of the substitution of hydrogen to fluorine in CsCaF3 shows existence of a solid solution CsCaF3-xHx (0 ≤ x ≤ 1.70) with cubic perovskite type structure. Both X-ray powder diffraction and wide line NMR show a statistical distribution of hydrogen and fluorine anions. The thermal evolution of the line width in the NMR spectra for 1H and 19F has been studied. The hydride ion is the only mobile one. Ionic conductivity measurements seem to confirm a diffusion mechanism based on anionic hydrogen vacancies.

Original languageEnglish
Pages (from-to)1127-1138
Number of pages12
JournalMaterials Research Bulletin
Issue number8
Publication statusPublished - 1988 Aug


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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