Structure and Ionic Conductivity of Ln2Zr2O7-Type Rare Earth Zirconates

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Three rare earth zirconates (Sm2Zr2O7, Gd2Zr2O7 and Er2Zr2O7) were prepared by solid state reaction. The crystal structure and ionic conductivity of these zirconates were characterized by X-ray diffraction (XRD) and complex impedance spectroscopy. The results show that Sm2Zr2O7 exhibits single-phase pyrochlore structure and Er2Zr2O7 exhibits single-phase fluorite structure, while Gd2Zr2O7 has pyrochlore and fluorite structure. Among three zirconates, the ionic conductivity of Sm2Zr2O7 is highest, while that of Er2Zr2O7 is lowest.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

420-423

DOI:

10.4028/www.scientific.net/KEM.336-338.420

Citation:

R. Zhang et al., "Structure and Ionic Conductivity of Ln2Zr2O7-Type Rare Earth Zirconates", Key Engineering Materials, Vols. 336-338, pp. 420-423, 2007

Online since:

April 2007

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$35.00

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