Camber Evolution and Stress Development of Porous Ceramic Bilayers During Co-Firing

De Wei Ni, Vincenzo Esposito, Cristine Grings Schmidt, Tesfaye Tadesse Molla, Kjeld Bøhm Andersen, Andreas Kaiser, Severine Ramousse, Nini Pryds

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Abstract

Camber evolution and stress development during co-firing of asymmetric bilayer laminates, consisting of porous Ce0.9Gd0.1O1.95 gadolinium-doped cerium oxide (CGO) and La0.85Sr0.15MnO3
lanthanum strontium manganate (LSM)-CGO were investigated. Individual layer shrinkage was measured by optical dilatometer, and the uniaxial viscosities were determined as a function of layer density using a vertical sintering approach. The camber evolution in the bilayer laminates was recorded in situ during co-firing and it was found to correspond well with the one predicted by the theoretical model. The estimated sintering mismatch stress in co-fired CGO-LSM/CGO bilayer laminates was significantly lower than general sintering stresses expected for free sintering conditions. As a result, no co-firing defects were observed in the bilayer laminates, illustrating an acceptable sintering compatibility of the ceramic layers.
Original languageEnglish
JournalJournal of the American Ceramic Society
Volume96
Issue number3
Pages (from-to)972-978
ISSN0002-7820
DOIs
Publication statusPublished - 2013

Cite this

Ni, De Wei ; Esposito, Vincenzo ; Schmidt, Cristine Grings ; Tadesse Molla, Tesfaye ; Andersen, Kjeld Bøhm ; Kaiser, Andreas ; Ramousse, Severine ; Pryds, Nini. / Camber Evolution and Stress Development of Porous Ceramic Bilayers During Co-Firing. In: Journal of the American Ceramic Society. 2013 ; Vol. 96, No. 3. pp. 972-978.
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abstract = "Camber evolution and stress development during co-firing of asymmetric bilayer laminates, consisting of porous Ce0.9Gd0.1O1.95 gadolinium-doped cerium oxide (CGO) and La0.85Sr0.15MnO3lanthanum strontium manganate (LSM)-CGO were investigated. Individual layer shrinkage was measured by optical dilatometer, and the uniaxial viscosities were determined as a function of layer density using a vertical sintering approach. The camber evolution in the bilayer laminates was recorded in situ during co-firing and it was found to correspond well with the one predicted by the theoretical model. The estimated sintering mismatch stress in co-fired CGO-LSM/CGO bilayer laminates was significantly lower than general sintering stresses expected for free sintering conditions. As a result, no co-firing defects were observed in the bilayer laminates, illustrating an acceptable sintering compatibility of the ceramic layers.",
author = "Ni, {De Wei} and Vincenzo Esposito and Schmidt, {Cristine Grings} and {Tadesse Molla}, Tesfaye and Andersen, {Kjeld B{\o}hm} and Andreas Kaiser and Severine Ramousse and Nini Pryds",
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journal = "Journal of the American Ceramic Society",
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Camber Evolution and Stress Development of Porous Ceramic Bilayers During Co-Firing. / Ni, De Wei; Esposito, Vincenzo; Schmidt, Cristine Grings; Tadesse Molla, Tesfaye; Andersen, Kjeld Bøhm; Kaiser, Andreas; Ramousse, Severine; Pryds, Nini.

In: Journal of the American Ceramic Society, Vol. 96, No. 3, 2013, p. 972-978.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Camber Evolution and Stress Development of Porous Ceramic Bilayers During Co-Firing

AU - Ni, De Wei

AU - Esposito, Vincenzo

AU - Schmidt, Cristine Grings

AU - Tadesse Molla, Tesfaye

AU - Andersen, Kjeld Bøhm

AU - Kaiser, Andreas

AU - Ramousse, Severine

AU - Pryds, Nini

PY - 2013

Y1 - 2013

N2 - Camber evolution and stress development during co-firing of asymmetric bilayer laminates, consisting of porous Ce0.9Gd0.1O1.95 gadolinium-doped cerium oxide (CGO) and La0.85Sr0.15MnO3lanthanum strontium manganate (LSM)-CGO were investigated. Individual layer shrinkage was measured by optical dilatometer, and the uniaxial viscosities were determined as a function of layer density using a vertical sintering approach. The camber evolution in the bilayer laminates was recorded in situ during co-firing and it was found to correspond well with the one predicted by the theoretical model. The estimated sintering mismatch stress in co-fired CGO-LSM/CGO bilayer laminates was significantly lower than general sintering stresses expected for free sintering conditions. As a result, no co-firing defects were observed in the bilayer laminates, illustrating an acceptable sintering compatibility of the ceramic layers.

AB - Camber evolution and stress development during co-firing of asymmetric bilayer laminates, consisting of porous Ce0.9Gd0.1O1.95 gadolinium-doped cerium oxide (CGO) and La0.85Sr0.15MnO3lanthanum strontium manganate (LSM)-CGO were investigated. Individual layer shrinkage was measured by optical dilatometer, and the uniaxial viscosities were determined as a function of layer density using a vertical sintering approach. The camber evolution in the bilayer laminates was recorded in situ during co-firing and it was found to correspond well with the one predicted by the theoretical model. The estimated sintering mismatch stress in co-fired CGO-LSM/CGO bilayer laminates was significantly lower than general sintering stresses expected for free sintering conditions. As a result, no co-firing defects were observed in the bilayer laminates, illustrating an acceptable sintering compatibility of the ceramic layers.

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EP - 978

JO - Journal of the American Ceramic Society

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SN - 0002-7820

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