Electrical properties of the GdSmZr 2O 7 ceramic under different sintering conditions

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

doi:10.1016/j.jpowsour.2012.03.024

Electrical properties of the GdSmZr ₂O ₇ ceramic under different sintering conditions

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

^*Corresponding author for this work

Harbin Institute of Technology

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

10 Citations (Scopus)

Abstract

The GdSmZr ₂O ₇ ceramic is prepared by pressureless-sintered method under different conditions as a possible solid electrolyte. The crystal structure, microstructure and electrical properties are characterized by the X-ray diffraction, field-emission scanning electron microscopy and ac impedance spectroscopy, respectively. The GdSmZr ₂O ₇ ceramic exhibits a single phase of the pyrochlore-type structure. The total conductivity of the GdSmZr ₂O ₇ ceramic obeys the Arrhenius relation, and gradually increases with increasing temperature from 723 to 1173 K. The GdSmZr ₂O ₇ ceramic is an oxide-ion conductor in the oxygen partial pressure range of 1.0 × 10 ^-4 to 1.0 atm at all test temperature levels. According to the experimental results of the present work, the maximum value of the total conductivity for the GdSmZr ₂O ₇ ceramic is about 1.01 × 10 ^-2 S cm ^-1 at 1173 K.

Original language	English
Pages (from-to)	96-100
Number of pages	5
Journal	Journal of Power Sources
Volume	210
DOIs	https://doi.org/10.1016/j.jpowsour.2012.03.024
Publication status	Published - 15 Jul 2012
Externally published	Yes

Keywords

Electrical conductivity
Impedance spectroscopy
Pyrochlore
Rare-earth zirconate
Solid electrolyte

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2012.03.024

Cite this

@article{37fa3f9024854d97a395f3cebb81ebe3,

title = "Electrical properties of the GdSmZr 2O 7 ceramic under different sintering conditions",

abstract = "The GdSmZr 2O 7 ceramic is prepared by pressureless-sintered method under different conditions as a possible solid electrolyte. The crystal structure, microstructure and electrical properties are characterized by the X-ray diffraction, field-emission scanning electron microscopy and ac impedance spectroscopy, respectively. The GdSmZr 2O 7 ceramic exhibits a single phase of the pyrochlore-type structure. The total conductivity of the GdSmZr 2O 7 ceramic obeys the Arrhenius relation, and gradually increases with increasing temperature from 723 to 1173 K. The GdSmZr 2O 7 ceramic is an oxide-ion conductor in the oxygen partial pressure range of 1.0 × 10 -4 to 1.0 atm at all test temperature levels. According to the experimental results of the present work, the maximum value of the total conductivity for the GdSmZr 2O 7 ceramic is about 1.01 × 10 -2 S cm -1 at 1173 K.",

keywords = "Electrical conductivity, Impedance spectroscopy, Pyrochlore, Rare-earth zirconate, Solid electrolyte",

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

year = "2012",

month = jul,

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doi = "10.1016/j.jpowsour.2012.03.024",

language = "English",

volume = "210",

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journal = "Journal of Power Sources",

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T1 - Electrical properties of the GdSmZr 2O 7 ceramic under different sintering conditions

AU - Liu, Zhan Guo

AU - Ouyang, Jia Hu

AU - Sun, Ke Ning

AU - Zhou, Yu

PY - 2012/7/15

Y1 - 2012/7/15

N2 - The GdSmZr 2O 7 ceramic is prepared by pressureless-sintered method under different conditions as a possible solid electrolyte. The crystal structure, microstructure and electrical properties are characterized by the X-ray diffraction, field-emission scanning electron microscopy and ac impedance spectroscopy, respectively. The GdSmZr 2O 7 ceramic exhibits a single phase of the pyrochlore-type structure. The total conductivity of the GdSmZr 2O 7 ceramic obeys the Arrhenius relation, and gradually increases with increasing temperature from 723 to 1173 K. The GdSmZr 2O 7 ceramic is an oxide-ion conductor in the oxygen partial pressure range of 1.0 × 10 -4 to 1.0 atm at all test temperature levels. According to the experimental results of the present work, the maximum value of the total conductivity for the GdSmZr 2O 7 ceramic is about 1.01 × 10 -2 S cm -1 at 1173 K.

AB - The GdSmZr 2O 7 ceramic is prepared by pressureless-sintered method under different conditions as a possible solid electrolyte. The crystal structure, microstructure and electrical properties are characterized by the X-ray diffraction, field-emission scanning electron microscopy and ac impedance spectroscopy, respectively. The GdSmZr 2O 7 ceramic exhibits a single phase of the pyrochlore-type structure. The total conductivity of the GdSmZr 2O 7 ceramic obeys the Arrhenius relation, and gradually increases with increasing temperature from 723 to 1173 K. The GdSmZr 2O 7 ceramic is an oxide-ion conductor in the oxygen partial pressure range of 1.0 × 10 -4 to 1.0 atm at all test temperature levels. According to the experimental results of the present work, the maximum value of the total conductivity for the GdSmZr 2O 7 ceramic is about 1.01 × 10 -2 S cm -1 at 1173 K.

KW - Electrical conductivity

KW - Impedance spectroscopy

KW - Pyrochlore

KW - Rare-earth zirconate

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