Ionic conductivity of co-doped Sc2O3-ZrO2 ceramics

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

Research output: Contribution to journalConference articleResearchpeer-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 languageEnglish
JournalA I P Conference Proceedings Series
Volume1461
Pages (from-to)289-293
ISSN0094-243X
Publication statusPublished - 2012
EventInternational Workshop on Functional Materials (IWFM-2011) - Berhampur, India
Duration: 20 Dec 201122 Dec 2011

Conference

ConferenceInternational Workshop on Functional Materials (IWFM-2011)
CountryIndia
CityBerhampur
Period20/12/201122/12/2011

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