Creep behaviour of porous SOFC electrodes: Measurement and application to Ni-8YSZ cermets

Laurencin, Jérôme; Delette, G.; Usseglio-Viretta, François; Iorio, Stéphane Di

doi:10.1016/j.jeurceramsoc.2011.02.036

Cited by 50 publications

(46 citation statements)

References 35 publications

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“…As already established [28], the creep of the substrate during operation can be described by the classical Norton's law. It is worth mentioning that only the cermet in its reduced state is liable to deform notably by creep [28].…”

Section: Numerical Modelling In Visco-plasticitymentioning

confidence: 92%

“…F is the applied load on the inner bearings whereas d is the recorded beam deflection. It can be noticed that d has been measured by using a high temperature extensometer designed for such application [28]. Before reaching the brittle fracture of the sample, a linear dependence between F and d is observed (Fig.…”

Section: Sample Preparation and Characterization Techniquesmentioning

confidence: 99%

“…The model chosen for the electrolyte is representative of a purely elastic behaviour. The Ni-YSZ cermet is assumed to follow an elasto-visco-plastic behaviour [28]. In this case, the elastic constants of the inner part of the cermet (i.e.…”

Section: Numerical Modelling In Visco-plasticitymentioning

confidence: 99%

“…Furthermore, it has been recently established that the cermet in its reduced Ni-YSZ state could creep even at the SOFC operating temperature [28]. The cermet visco-plasticity in operation can induce a stress relaxation, and hence, modifies the stress state after re-oxidation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ni-8YSZ cermet re-oxidation of anode supported solid oxide fuel cell: From kinetics measurements to mechanical damage prediction

Laurencin

Roche

Jaboutian

et al. 2012

International Journal of Hydrogen Energy

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Section: Numerical Modelling In Visco-plasticitymentioning

confidence: 92%

Section: Sample Preparation and Characterization Techniquesmentioning

confidence: 99%

Section: Numerical Modelling In Visco-plasticitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ni-8YSZ cermet re-oxidation of anode supported solid oxide fuel cell: From kinetics measurements to mechanical damage prediction

Laurencin

Roche

Jaboutian

et al. 2012

International Journal of Hydrogen Energy

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“…Lattice diffusion creep (13) Diffusion creep (14) Diffusion creep (15) (17) Diffusion creep (18) Inter-connecter LaCrO …”

Section: -1535unclassified

Creep Property of Cathode Materials Based on Lanthanum Manganite in SOFC Operating Conditions

Iguchi

Okuda²,

Kitahara³

et al. 2012

Trans.JSME, Ser.A

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SOFC 作動環境下におけるランタンマンガナイト系カソード材料のクリープ特性Creep properties of strontium doped lanthanum manganite (LSM) were studied in SOFC operating conditions, i.e.in the temperature range of 800 o C to 1050 o C and in air and argon gas environment. Although the difference of atmosphere did not affect creep properties, temperature and applied stress dependence of steady-state creep rate changed around 900 o C. Considering previous reports, it was concluded that dominant creep mechanism of LSM in the temperature range of 950 o C to 1300 o C was diffusion creep and the dominant creep mechanism changed at the temperature lower than 900 o C. This indicated that dominant creep mechanism was grain boundary sliding creep.Because grain boundary sliding creep showed higher stress dependence and lower temperature dependence than diffusion creep, creep deformation during SOFC operation will be larger than expectations based on diffusion creep. 緒言

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Addressing planar solid oxide cell degradation mechanisms: A critical review of selected components

McPhail

Frangini

Laurencin

et al. 2021

Electrochemical Science Adv

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In this review paper, a critical assessment of the main degradation processes in three key components of solid oxide fuel cells and electrolysers (negative and positive electrodes and the interconnect) is undertaken, attempting prioritization of respective degradation effects and recommendation of the best approaches in their experimental ascertainment and numerical modeling.Besides different approaches to quantifying the degradation rate of an operating solid oxide cell (SOC), the latest advancements in microstructural representation (3D imaging and reconstruction) of SOC electrodes are reviewed, applied to the quantification of triple-phase boundary (TPB) lengths and morphology evolution over time. The intrinsic degradation processes in the negative (fuel)This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Creep behaviour of porous SOFC electrodes: Measurement and application to Ni-8YSZ cermets

Cited by 50 publications

References 35 publications

Ni-8YSZ cermet re-oxidation of anode supported solid oxide fuel cell: From kinetics measurements to mechanical damage prediction

Ni-8YSZ cermet re-oxidation of anode supported solid oxide fuel cell: From kinetics measurements to mechanical damage prediction

Creep Property of Cathode Materials Based on Lanthanum Manganite in SOFC Operating Conditions

Addressing planar solid oxide cell degradation mechanisms: A critical review of selected components

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