Structure and electrical properties of oxide-ion conductors in the Bi3NbO7-Bi3YO6 system

• Autorzy: Kozanecka-Szmigiel, A. , Krok, F. , Abrahams, I. , Wrobel, W. , Chan, S.C.M. , Dygas, J.R.
• Konferencja: IX National Conference on Fast Ion Conductors , Wrocław-Borowice , 9-12 December 2004
• Języki publikacji: EN

Abstrakty

EN

A study of the structure and electrical conductivity of Bi3Nb1-xYxO7-x is presented. X-ray diffraction confirms full solid solution formation in this system, with the adoption of a fluorite-type structure. Superlattice ordering of the anion sublattice is evident in neutron diffraction data, the nature of which varies with composition. At low values of x, long-range ordering is present, whereas above x = 0.4 only local ordering is observed. Arrhenius plots of the total electrical conductivity of all samples containing yttrium show two linear regions with different activation energies, with evidence for a phase transition between 450 and 680 °C.

Słowa kluczowe

PL

tlenek bizmutu; przewodnik jonowy; elektrolit stały

EN

bismuth oxide; bismuth-niobium-yttrium oxide; oxide-ion conductor; solid electrolyte

• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 1
• Strony: 31--37
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Kozanecka-Szmigiel, A.

autor

Krok, F.

autor

Abrahams, I.

autor

Wrobel, W.

autor

Chan, S.C.M.

autor

Dygas, J.R.

• Faculty of Physics, Warsaw University of Technology, ul. Koszykowa 75, 00-662, Warsaw,

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