High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ

S.F.P. ten Donkelaar; V. Stournari; J. Malzbender; Arian Nijmeijer; Henricus J.M. Bouwmeester

doi:10.1016/j.jeurceramsoc.2015.08.002

High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ

S.F.P. ten Donkelaar, V. Stournari, J. Malzbender, Arian Nijmeijer, Henricus J.M. Bouwmeester

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

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Abstract

Compressive creep tests have been performed on mixed ionic-electronic conducting perovskite-type oxides SrTi1-xFexO3- (STF, x = 0.3, 0.5 and 0.7). Observed activation energies and stress exponents, at 800–1000 ◦C and in the stress range 10 100 MPa, indicate that the steady-state creep rate of STF under these conditions is predominantly limited by cation lattice diffusion (Nabarro-Herring creep). The effective stress exponents reflect a contribution of dislocation creep to the mechanism of creep in STF30 (x = 0.3). The observed creep rates are compared with those exhibited by related perovskite-type oxides, and are discussed in view of the possible application of STF as oxygen transport membrane (OTM).

Original language	English
Pages (from-to)	4203-4209
Journal	Journal of the European Ceramic Society
Volume	35
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2015.08.002
Publication status	Published - 2015

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Keywords

IR-99491
METIS-315948

Cite this

ten Donkelaar, S. F. P., Stournari, V., Malzbender, J., Nijmeijer, A., & Bouwmeester, H. J. M. (2015). High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ. Journal of the European Ceramic Society, 35, 4203-4209. https://doi.org/10.1016/j.jeurceramsoc.2015.08.002

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abstract = "Compressive creep tests have been performed on mixed ionic-electronic conducting perovskite-type oxides SrTi1-xFexO3- (STF, x = 0.3, 0.5 and 0.7). Observed activation energies and stress exponents, at 800–1000 ◦C and in the stress range 10 100 MPa, indicate that the steady-state creep rate of STF under these conditions is predominantly limited by cation lattice diffusion (Nabarro-Herring creep). The effective stress exponents reflect a contribution of dislocation creep to the mechanism of creep in STF30 (x = 0.3). The observed creep rates are compared with those exhibited by related perovskite-type oxides, and are discussed in view of the possible application of STF as oxygen transport membrane (OTM).",

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AU - ten Donkelaar, S.F.P.

AU - Stournari, V.

AU - Malzbender, J.

AU - Nijmeijer, Arian

AU - Bouwmeester, Henricus J.M.

PY - 2015

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AB - Compressive creep tests have been performed on mixed ionic-electronic conducting perovskite-type oxides SrTi1-xFexO3- (STF, x = 0.3, 0.5 and 0.7). Observed activation energies and stress exponents, at 800–1000 ◦C and in the stress range 10 100 MPa, indicate that the steady-state creep rate of STF under these conditions is predominantly limited by cation lattice diffusion (Nabarro-Herring creep). The effective stress exponents reflect a contribution of dislocation creep to the mechanism of creep in STF30 (x = 0.3). The observed creep rates are compared with those exhibited by related perovskite-type oxides, and are discussed in view of the possible application of STF as oxygen transport membrane (OTM).

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DO - 10.1016/j.jeurceramsoc.2015.08.002

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10.1016/j.jeurceramsoc.2015.08.002