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

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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 languageEnglish
Pages (from-to)4203-4209
JournalJournal of the European Ceramic Society
Volume35
DOIs
Publication statusPublished - 2015

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Perovskite
Oxides
Creep
Temperature
perovskite
Cations
Activation energy
Positive ions
Oxygen
Membranes

Keywords

  • IR-99491
  • METIS-315948

Cite this

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title = "High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ",
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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High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ. / ten Donkelaar, S.F.P.; Stournari, V.; Malzbender, J.; Nijmeijer, Arian; Bouwmeester, Henricus J.M.

In: Journal of the European Ceramic Society, Vol. 35, 2015, p. 4203-4209.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - High-temperature compressive creep behaviour of perovskite-type oxides SrTi1-xFexO3-δ

AU - ten Donkelaar, S.F.P.

AU - Stournari, V.

AU - Malzbender, J.

AU - Nijmeijer, Arian

AU - Bouwmeester, Henricus J.M.

PY - 2015

Y1 - 2015

N2 - 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).

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).

KW - IR-99491

KW - METIS-315948

U2 - 10.1016/j.jeurceramsoc.2015.08.002

DO - 10.1016/j.jeurceramsoc.2015.08.002

M3 - Article

VL - 35

SP - 4203

EP - 4209

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

ER -