Author/Authors :
Kazakevi?ius، نويسنده , , E. and Dindune، نويسنده , , A. and Kanepe، نويسنده , , Z. and Ronis، نويسنده , , J. and Orliukas، نويسنده , , A. and Ke?ionis، نويسنده , , A. and ?alkus، نويسنده , , T.، نويسنده ,
Abstract :
The powders of Li1.3Sc0.15Y0.15Ti1.7(PO4)3 were synthesized by a solid phase reaction. The sintering duration of the ceramic samples was varied from 0.25 h to 3 h and studied by X-ray and impedance spectroscopy in the frequency range from 10 Hz to 1.2 × 109 Hz at temperatures up to 600 K. Two relaxation dispersions of the electrical parameters were found and analysed in terms of bulk and grain boundary ionic transport processes. Varying of the sintering duration affects the density of the ceramics, sizes of grains, values of the total conductivity (σt) and its activation energy (ΔEt). The bulk conductivity (σb) and its activation energy (ΔEb) in average do not depend on duration of sintering.
Keywords :
permittivity , ionic conductivity , Synthetis , Fast ion transport , Solid electrolyte ceramics , Transport properties
