Effect of metal oxides on the densification and electrical conductivity of the GdSmZr2O7 ceramic

Zhan Guo Liu; Jia Hu Ouyang; Ke Ning Sun; Yu Zhou

doi:10.1016/j.jallcom.2014.08.040

Effect of metal oxides on the densification and electrical conductivity of the GdSmZr₂O₇ ceramic

Zhan Guo Liu^*, Jia Hu Ouyang, Ke Ning Sun, Yu Zhou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The effects of a single additive (SnO₂, Ta₂O ₅, or WO₃) on the crystal structure, densification, and electrical conductivity of the GdSmZr₂O₇ ceramic have been examined. The GdSmZr₂O₇ ceramic with or without a single additive of 1 wt.% SnO₂, Ta₂O₅, or WO ₃ sintered at temperatures between 1773 and 1973 K exhibits a single cubic pyrochlore-type phase. The relative densities of different compositions increase with increasing sintering temperature. The total conductivity of different samples obeys the Arrhenius relation. The total conductivity of the GdSmZr₂O₇ ceramic is not improved by the addition of 1 wt.% SnO₂, Ta₂O₅, or WO₃. A single additive, SnO₂, Ta₂O₅, or WO₃, is not an effective sintering aid for the GdSmZr₂O₇ ceramic.

Original language	English
Pages (from-to)	393-398
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	617
DOIs	https://doi.org/10.1016/j.jallcom.2014.08.040
Publication status	Published - 25 Dec 2014
Externally published	Yes

Keywords

Electrical conductivity
Gadolinium-samarium zirconate
Impedance spectroscopy
Metal oxide
Solid electrolyte

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10.1016/j.jallcom.2014.08.040

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title = "Effect of metal oxides on the densification and electrical conductivity of the GdSmZr2O7 ceramic",

abstract = "The effects of a single additive (SnO2, Ta2O 5, or WO3) on the crystal structure, densification, and electrical conductivity of the GdSmZr2O7 ceramic have been examined. The GdSmZr2O7 ceramic with or without a single additive of 1 wt.% SnO2, Ta2O5, or WO 3 sintered at temperatures between 1773 and 1973 K exhibits a single cubic pyrochlore-type phase. The relative densities of different compositions increase with increasing sintering temperature. The total conductivity of different samples obeys the Arrhenius relation. The total conductivity of the GdSmZr2O7 ceramic is not improved by the addition of 1 wt.% SnO2, Ta2O5, or WO3. A single additive, SnO2, Ta2O5, or WO3, is not an effective sintering aid for the GdSmZr2O7 ceramic.",

keywords = "Electrical conductivity, Gadolinium-samarium zirconate, Impedance spectroscopy, Metal oxide, Solid electrolyte",

author = "Liu, {Zhan Guo} and Ouyang, {Jia Hu} and Sun, {Ke Ning} and Yu Zhou",

year = "2014",

month = dec,

day = "25",

doi = "10.1016/j.jallcom.2014.08.040",

language = "English",

volume = "617",

pages = "393--398",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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T1 - Effect of metal oxides on the densification and electrical conductivity of the GdSmZr2O7 ceramic

AU - Liu, Zhan Guo

AU - Ouyang, Jia Hu

AU - Sun, Ke Ning

AU - Zhou, Yu

PY - 2014/12/25

Y1 - 2014/12/25

N2 - The effects of a single additive (SnO2, Ta2O 5, or WO3) on the crystal structure, densification, and electrical conductivity of the GdSmZr2O7 ceramic have been examined. The GdSmZr2O7 ceramic with or without a single additive of 1 wt.% SnO2, Ta2O5, or WO 3 sintered at temperatures between 1773 and 1973 K exhibits a single cubic pyrochlore-type phase. The relative densities of different compositions increase with increasing sintering temperature. The total conductivity of different samples obeys the Arrhenius relation. The total conductivity of the GdSmZr2O7 ceramic is not improved by the addition of 1 wt.% SnO2, Ta2O5, or WO3. A single additive, SnO2, Ta2O5, or WO3, is not an effective sintering aid for the GdSmZr2O7 ceramic.

AB - The effects of a single additive (SnO2, Ta2O 5, or WO3) on the crystal structure, densification, and electrical conductivity of the GdSmZr2O7 ceramic have been examined. The GdSmZr2O7 ceramic with or without a single additive of 1 wt.% SnO2, Ta2O5, or WO 3 sintered at temperatures between 1773 and 1973 K exhibits a single cubic pyrochlore-type phase. The relative densities of different compositions increase with increasing sintering temperature. The total conductivity of different samples obeys the Arrhenius relation. The total conductivity of the GdSmZr2O7 ceramic is not improved by the addition of 1 wt.% SnO2, Ta2O5, or WO3. A single additive, SnO2, Ta2O5, or WO3, is not an effective sintering aid for the GdSmZr2O7 ceramic.

KW - Electrical conductivity

KW - Gadolinium-samarium zirconate

KW - Impedance spectroscopy

KW - Metal oxide

KW - Solid electrolyte

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U2 - 10.1016/j.jallcom.2014.08.040

DO - 10.1016/j.jallcom.2014.08.040

M3 - Article

AN - SCOPUS:84906738813

SN - 0925-8388

VL - 617

SP - 393

EP - 398

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Effect of metal oxides on the densification and electrical conductivity of the GdSmZr₂O₇ ceramic

Abstract

Keywords

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