PREPARATION AND ELECTRICAL CHARACTERIZATION OF BICUVOX.1 OXIDE ION CONDUCTOR CERAMICS

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PAIDAR M.H.; HADIAN A.M.; FAFILEK G.

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Journal: Year:2001 | Volume:35 | Issue:2 (72) Page(s): 149-156

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Title

PREPARATION AND ELECTRICAL CHARACTERIZATION OF BICUVOX.1 OXIDE ION CONDUCTOR CERAMICS

Author(s)

PAIDAR M.H. | HADIAN A.M. | FAFILEK G. | Issue Writer Certificate

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Abstract

BIMEVOX solid electrolytes are produced by partly substitution of vanadium of bismuth vanadate, Bi4V2O11, by different metals (ME: Cu, Ni, Ti, Zr,..;), and have tetragonal crystal structure at room temperature with the highest ionic conductivity at moderate temperature. BICUVOX.1 in which 10 atomic percent of vanadium of Bi4V2O11 has been substituted by Cu is the most famous member of the mentioned oxide ion conductors and at 400oC its ionic conductivity (0.02 S/cm) is more than 50 to 100 times of stabilized zirconia (the most famous solid electrolyte) at the same temperature. In the present work, BICUVOX.1 compound has been synthesized by solid-state method and its crystal structure and probable phase transformations at different temperatures were determined by X-ray diffraction and thermal analysis (DTA/TG) methods. Ionic conductivity of the BICUVOX.I dense samples was determined in the range of 100-750oC using impedance spectroscopy method. The results showed that BICUVOX.1 synthesized at 650oC with tetragonal crystal structure is stable up to the melting point and just ordering/disordering transformation of oxygen vacancies occurs at around 400- 500oC. Ionic conductivities at moderate temperatures (300-500oC) were obtained more better than stabilized zirconia, with lower activation energies (0.4 eV versus 1.1eV).

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APA: Copy

PAIDAR, M.H., HADIAN, A.M., & FAFILEK, G.. (2001). PREPARATION AND ELECTRICAL CHARACTERIZATION OF BICUVOX.1 OXIDE ION CONDUCTOR CERAMICS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 35(2 (72)), 149-156. SID. https://sid.ir/paper/14134/en

Vancouver: Copy

PAIDAR M.H., HADIAN A.M., FAFILEK G.. PREPARATION AND ELECTRICAL CHARACTERIZATION OF BICUVOX.1 OXIDE ION CONDUCTOR CERAMICS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2001;35(2 (72)):149-156. Available from: https://sid.ir/paper/14134/en

IEEE: Copy

M.H. PAIDAR, A.M. HADIAN, and G. FAFILEK, “PREPARATION AND ELECTRICAL CHARACTERIZATION OF BICUVOX.1 OXIDE ION CONDUCTOR CERAMICS,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 35, no. 2 (72), pp. 149–156, 2001, [Online]. Available: https://sid.ir/paper/14134/en

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