SODIUM ION CONDUCTION AND RELAXATION STUDIES ON Na(4+X)TiXNb1-XP3O12 (0.0≤X≤1.0) GLASSES
A new superionic conducting transparent phosphate glasses with composition Na(4+x)TixNb1-xP3O12 (0.0≤x≤1.0) were prepared by rapid melt quenching. As quenched samples were characterized by XRD, DSC and FTIR and confirmed to be a glass with phosphate network. The thermal studies reveal that these glasses were found to have high thermal stability. Electrical properties of the present glasses were studied by impedance spectroscopy in the temperature range 323 K to 523K. The magnitude of Na+ ion conductivity is remarkable at higher temperature. The maximum was found in Na5TiP3O12 with higher Na2O contend compound under study, reaching a conductivity of 2.81×10-4 S cm-1 at 250℃. As the sodium content is very high (~40-50 mol%) in the composition range and there is no major structural transformation, consequently the conductivity for these glasses are less composition dependent. Arrhenius behavior has been observed for all the glass in conductivity and their activation energies are explained and reported.
S. VINOTH RATHAN G. GOVINDARAJ
Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, Pu Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, P
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
207-212
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）