Ionic conduction in yttrium aluminum garnet

S. R. Rotman; H. L. Tuller

doi:10.1016/0167-2738(90)90146-I

Ionic conduction in yttrium aluminum garnet

S. R. Rotman, H. L. Tuller

School of Electrical and Computer Engineering

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

9 Scopus citations

Abstract

The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be P_O2-independent, fixed by acceptor impurities. In the case of Ni dopants, a P_O2-dependent ionic conductivity was also observed and associated with the valence change of Ni³⁺ to Ni²⁺. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data.

Original language	English
Pages (from-to)	893-895
Number of pages	3
Journal	Solid State Ionics
Volume	40-41
Issue number	PART 2
DOIs	https://doi.org/10.1016/0167-2738(90)90146-I
State	Published - 1 Jan 1990

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/0167-2738(90)90146-I

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title = "Ionic conduction in yttrium aluminum garnet",

abstract = "The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be PO2-independent, fixed by acceptor impurities. In the case of Ni dopants, a PO2-dependent ionic conductivity was also observed and associated with the valence change of Ni3+ to Ni2+. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data.",

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N2 - The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be PO2-independent, fixed by acceptor impurities. In the case of Ni dopants, a PO2-dependent ionic conductivity was also observed and associated with the valence change of Ni3+ to Ni2+. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data.

AB - The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be PO2-independent, fixed by acceptor impurities. In the case of Ni dopants, a PO2-dependent ionic conductivity was also observed and associated with the valence change of Ni3+ to Ni2+. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data.

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AN - SCOPUS:0025468146

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SP - 893

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JO - Solid State Ionics

JF - Solid State Ionics

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ER -

Ionic conduction in yttrium aluminum garnet

Abstract

ASJC Scopus subject areas

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