Ionic conductivity of co-doped Sc2O3-ZrO2 ceramics

Shobit Omar; Waqas bin Najib; Weiwu Chen; S. K. Tripathy

Ionic conductivity of co-doped Sc₂O₃-ZrO₂ ceramics

Shobit Omar
, Waqas bin Najib
, Weiwu Chen
, S. K. Tripathy

Department of Energy Conversion and Storage

Technical University of Denmark

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

The oxide ionic conductivity of Sc0.18Zr0.82O1.91 doped with 0.5 mol.% of both Yb2O3 and In2O3 is evaluated at various temperatures in air. Among various co-doped compositions, In0.02Sc0.18Zr0.80O1.90 exhibits the highest grain ionic conductivity followed by Yb0.02Sc0.18Zr0.80O1.90 at 500°C. However, it also possesses phase transformation from c- to β-phase at 475°C on cooling. In the present work, an attempt is made to completely stabilize the cphase in In0.02Sc0.18Zr0.80O1.90 by substituting 0.5 mol.% of In2O3 with Yb2O3, which can enhance the ionic conductivity in co-doped compositions.

Original language	English
Journal	A I P Conference Proceedings Series
Volume	1461
Pages (from-to)	289-293
ISSN	0094-243X
Publication status	Published - 2012
Event	International Workshop on Functional Materials 2011 - Berhampur, India Duration: 20 Dec 2011 → 22 Dec 2011

Workshop

Workshop	International Workshop on Functional Materials 2011
Country/Territory	India
City	Berhampur
Period	20/12/2011 → 22/12/2011

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Cite this

@inproceedings{b857013687cd4b19b4e4453c8a5e985f,

title = "Ionic conductivity of co-doped Sc2O3-ZrO2 ceramics",

abstract = "The oxide ionic conductivity of Sc0.18Zr0.82O1.91 doped with 0.5 mol.\% of both Yb2O3 and In2O3 is evaluated at various temperatures in air. Among various co-doped compositions, In0.02Sc0.18Zr0.80O1.90 exhibits the highest grain ionic conductivity followed by Yb0.02Sc0.18Zr0.80O1.90 at 500°C. However, it also possesses phase transformation from c- to β-phase at 475°C on cooling. In the present work, an attempt is made to completely stabilize the cphase in In0.02Sc0.18Zr0.80O1.90 by substituting 0.5 mol.\% of In2O3 with Yb2O3, which can enhance the ionic conductivity in co-doped compositions.",

author = "Shobit Omar and \{bin Najib\}, Waqas and Weiwu Chen and Tripathy, \{S. K.\}",

year = "2012",

language = "English",

volume = "1461",

pages = "289--293",

journal = "A I P Conference Proceedings Series",

issn = "0094-243X",

publisher = "American Institute of Physics",

note = "International Workshop on Functional Materials 2011, IWFM-2011 ; Conference date: 20-12-2011 Through 22-12-2011",

}

TY - GEN

T1 - Ionic conductivity of co-doped Sc2O3-ZrO2 ceramics

AU - Omar, Shobit

AU - bin Najib, Waqas

AU - Chen, Weiwu

AU - Tripathy, S. K.

PY - 2012

Y1 - 2012

N2 - The oxide ionic conductivity of Sc0.18Zr0.82O1.91 doped with 0.5 mol.% of both Yb2O3 and In2O3 is evaluated at various temperatures in air. Among various co-doped compositions, In0.02Sc0.18Zr0.80O1.90 exhibits the highest grain ionic conductivity followed by Yb0.02Sc0.18Zr0.80O1.90 at 500°C. However, it also possesses phase transformation from c- to β-phase at 475°C on cooling. In the present work, an attempt is made to completely stabilize the cphase in In0.02Sc0.18Zr0.80O1.90 by substituting 0.5 mol.% of In2O3 with Yb2O3, which can enhance the ionic conductivity in co-doped compositions.

AB - The oxide ionic conductivity of Sc0.18Zr0.82O1.91 doped with 0.5 mol.% of both Yb2O3 and In2O3 is evaluated at various temperatures in air. Among various co-doped compositions, In0.02Sc0.18Zr0.80O1.90 exhibits the highest grain ionic conductivity followed by Yb0.02Sc0.18Zr0.80O1.90 at 500°C. However, it also possesses phase transformation from c- to β-phase at 475°C on cooling. In the present work, an attempt is made to completely stabilize the cphase in In0.02Sc0.18Zr0.80O1.90 by substituting 0.5 mol.% of In2O3 with Yb2O3, which can enhance the ionic conductivity in co-doped compositions.

M3 - Conference article

SN - 0094-243X

VL - 1461

SP - 289

EP - 293

JO - A I P Conference Proceedings Series

JF - A I P Conference Proceedings Series

T2 - International Workshop on Functional Materials 2011

Y2 - 20 December 2011 through 22 December 2011