Analysis of the sintering stresses and shape distortion produced in co-firing of CGO-LSM/CGO bi-layer porous structures

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

Research output: Contribution to conferencePosterResearch

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Abstract

Gadolinium-doped cerium oxide (CGO) and lanthanum strontium manganate (LSM) are electro-ceramics materials with high potential for several electrochemical applications such as solid Oxide Fuel Cell (SOFC), gas separation membranes, and flue gas purification devices. Especially for novel electrochemical flue gas purification devices, multilayer structures with alternating porous layers of CGO and a LSM/CGO mixture are used to achieve specific functional requirements. In a manufacturing process of such ceramic multilayer devices, co-firing is one of the critical steps as many defects such as cracks, de-lamination and shape distortion can result as a consequence of sintering mismatch stresses caused by the strain rate difference between layers. This work seeks to understand the underlying mechanisms that occur during the co-firing of porous CGO-LSM/CGO bi-layer laminates, by evaluating the sintering mismatch stress and distortion development through modeling and experiments.
Original languageEnglish
Publication date2012
Number of pages1
Publication statusPublished - 2012
Event4th International Congress on Ceramics (ICC4): Shaping the Future of Ceramics - Sheraton Chicago Hotel & Towers, Chicago, IL, United States
Duration: 15 Jul 201219 Jul 2012

Conference

Conference4th International Congress on Ceramics (ICC4)
LocationSheraton Chicago Hotel & Towers
Country/TerritoryUnited States
CityChicago, IL
Period15/07/201219/07/2012

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