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Synthesis and ionic conductivity of vanadate apatite Ba10(VO4)6Cl 2

Faten Nouri, RiadhTernane, Malika Trabelsi-Ayadi

A new chlorapatiteBa10(VO4)6C 2has been synthesizedby the solid-state reaction and characterized byX-ray diffraction, infrared absorption and Raman scattering spectroscopies. Electrical properties of the material have been studied by the compleximpedancespectroscopy. Nyquist plots show negative temperature coefficient of resistance (NTCR)-type behavior. The total conductivity of the material is thermally activated with activation energy about 0.39 eV.