Cu-Mn-Co oxides as protective materials in SOFC technology: the effect of chemical composition on mechanochemical synthesis, sintering behaviour, thermal expansion and electrical conductivity

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Cu-Mn-Co oxides as protective materials in SOFC technology : the effect of chemical composition on mechanochemical synthesis, sintering behaviour, thermal expansion and electrical conductivity. / Masi, Andrea; Bellusci, Mariangela; McPhail, Stephen J.; Padella, Franco; Reale, Priscilla; Hong, Jong-Eun; Steinberger-Wilckens, Robert; Carlini, Maurizio.

In: Journal of the European Ceramic Society, Vol. 37, No. 2, JECS-10852, 02.2017, p. 661–669.

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@article{0cf60286174840d2bfc827a904c33e4a,
title = "Cu-Mn-Co oxides as protective materials in SOFC technology: the effect of chemical composition on mechanochemical synthesis, sintering behaviour, thermal expansion and electrical conductivity",
abstract = "To study the effect of the composition on the physico-chemical properties of mixed Cu-Mn-Co oxides as SOFC interconnects coating materials, different compounds have been obtained through a High Energy Ball Milling (HEBM) process. The mechanochemical treatment produces highly activated multi-phase powders that easily react at intermediate temperature to form the equilibrium products. Thermogravimetric, dilatometric and in-situ high temperature analyses allowed to show that Copper addition promotes cubic spinel stability at low temperature and enhances sintering behaviour.Dilatometric and conductivity analysis carried out on sintered pellets allowed to obtain simple relations between the materials properties and the composition. Coefficient of Thermal Expansion (CTE) and electrical conductivity are increased by Copper doping and high Co:Mn ratios. These findings suggest that the materials characteristics can be opportunely tuned through appropriate composition design, to simultaneously obtain enhanced sintering behaviour, high electrical conductivity and CTE adapted to match the substrate.",
keywords = "SOFC, protective coatings, fule cells, Oxides",
author = "Andrea Masi and Mariangela Bellusci and McPhail, {Stephen J.} and Franco Padella and Priscilla Reale and Jong-Eun Hong and Robert Steinberger-Wilckens and Maurizio Carlini",
year = "2017",
month = feb,
doi = "10.1016/j.jeurceramsoc.2016.09.025",
language = "English",
volume = "37",
pages = "661–669",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier",
number = "2",

}

RIS

TY - JOUR

T1 - Cu-Mn-Co oxides as protective materials in SOFC technology

T2 - the effect of chemical composition on mechanochemical synthesis, sintering behaviour, thermal expansion and electrical conductivity

AU - Masi, Andrea

AU - Bellusci, Mariangela

AU - McPhail, Stephen J.

AU - Padella, Franco

AU - Reale, Priscilla

AU - Hong, Jong-Eun

AU - Steinberger-Wilckens, Robert

AU - Carlini, Maurizio

PY - 2017/2

Y1 - 2017/2

N2 - To study the effect of the composition on the physico-chemical properties of mixed Cu-Mn-Co oxides as SOFC interconnects coating materials, different compounds have been obtained through a High Energy Ball Milling (HEBM) process. The mechanochemical treatment produces highly activated multi-phase powders that easily react at intermediate temperature to form the equilibrium products. Thermogravimetric, dilatometric and in-situ high temperature analyses allowed to show that Copper addition promotes cubic spinel stability at low temperature and enhances sintering behaviour.Dilatometric and conductivity analysis carried out on sintered pellets allowed to obtain simple relations between the materials properties and the composition. Coefficient of Thermal Expansion (CTE) and electrical conductivity are increased by Copper doping and high Co:Mn ratios. These findings suggest that the materials characteristics can be opportunely tuned through appropriate composition design, to simultaneously obtain enhanced sintering behaviour, high electrical conductivity and CTE adapted to match the substrate.

AB - To study the effect of the composition on the physico-chemical properties of mixed Cu-Mn-Co oxides as SOFC interconnects coating materials, different compounds have been obtained through a High Energy Ball Milling (HEBM) process. The mechanochemical treatment produces highly activated multi-phase powders that easily react at intermediate temperature to form the equilibrium products. Thermogravimetric, dilatometric and in-situ high temperature analyses allowed to show that Copper addition promotes cubic spinel stability at low temperature and enhances sintering behaviour.Dilatometric and conductivity analysis carried out on sintered pellets allowed to obtain simple relations between the materials properties and the composition. Coefficient of Thermal Expansion (CTE) and electrical conductivity are increased by Copper doping and high Co:Mn ratios. These findings suggest that the materials characteristics can be opportunely tuned through appropriate composition design, to simultaneously obtain enhanced sintering behaviour, high electrical conductivity and CTE adapted to match the substrate.

KW - SOFC

KW - protective coatings

KW - fule cells

KW - Oxides

U2 - 10.1016/j.jeurceramsoc.2016.09.025

DO - 10.1016/j.jeurceramsoc.2016.09.025

M3 - Article

VL - 37

SP - 661

EP - 669

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 2

M1 - JECS-10852

ER -