The elastic modulus of pure and doped ceria

Ellen Wachtel; Igor Lubomirsky

doi:10.1016/j.scriptamat.2010.09.021

The elastic modulus of pure and doped ceria

Ellen Wachtel, Igor Lubomirsky

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

Abstract

Measurements of the elastic modulus of pure and doped ceria are summarized from the literature and analyzed with a view towards understanding the experimentally established dependence on temperature, doping level and oxygen vacancy concentration. At least two chemical properties affect the elastic modulus of pure and doped ceria: (i) the presence of vacancies decreases the strength of the chemical bonds; and (ii) low-temperature adaptation of the fluorite structure to the presence of oxygen vacancies is accompanied by an increase in unit cell volume.

Original language	English
Pages (from-to)	112-117
Number of pages	6
Journal	Scripta Materialia
Volume	65
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2010.09.021
State	Published - Jul 2011
Externally published	Yes

Bibliographical note

Funding Information:
I.L. wishes to thank the US–Israel Binational Science Foundation for funding this research. The research is also made possible in part by the generosity of the Harold Perlman family.

Keywords

Chemistry of point defects
Elastic properties
Gd-doped ceria
Solid oxide fuel cells

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10.1016/j.scriptamat.2010.09.021

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abstract = "Measurements of the elastic modulus of pure and doped ceria are summarized from the literature and analyzed with a view towards understanding the experimentally established dependence on temperature, doping level and oxygen vacancy concentration. At least two chemical properties affect the elastic modulus of pure and doped ceria: (i) the presence of vacancies decreases the strength of the chemical bonds; and (ii) low-temperature adaptation of the fluorite structure to the presence of oxygen vacancies is accompanied by an increase in unit cell volume.",

keywords = "Chemistry of point defects, Elastic properties, Gd-doped ceria, Solid oxide fuel cells",

author = "Ellen Wachtel and Igor Lubomirsky",

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N2 - Measurements of the elastic modulus of pure and doped ceria are summarized from the literature and analyzed with a view towards understanding the experimentally established dependence on temperature, doping level and oxygen vacancy concentration. At least two chemical properties affect the elastic modulus of pure and doped ceria: (i) the presence of vacancies decreases the strength of the chemical bonds; and (ii) low-temperature adaptation of the fluorite structure to the presence of oxygen vacancies is accompanied by an increase in unit cell volume.

AB - Measurements of the elastic modulus of pure and doped ceria are summarized from the literature and analyzed with a view towards understanding the experimentally established dependence on temperature, doping level and oxygen vacancy concentration. At least two chemical properties affect the elastic modulus of pure and doped ceria: (i) the presence of vacancies decreases the strength of the chemical bonds; and (ii) low-temperature adaptation of the fluorite structure to the presence of oxygen vacancies is accompanied by an increase in unit cell volume.

KW - Chemistry of point defects

KW - Elastic properties

KW - Gd-doped ceria

KW - Solid oxide fuel cells

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ER -

The elastic modulus of pure and doped ceria

Abstract

Bibliographical note

Keywords

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