一方向開気孔を有するセラミックス多孔体上に緻密な固体電解質薄膜の作製(<特集>セラミックスインテグレーション)

概要

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A porous La_<0.6>Sr_<0.4>Co_<0.2>Fe_<0.8>O_3-Ce_<0.9>Gd_<0.1>O_<1.95> (LSCF-CGO) green body was prepared from a water-based slurry by a freeze-drying process. The LSCF-CGO slurry was frozen, controlling the growth direction of ice, and it was sublimated at a reduced pressure. After sintering the green body at 1350℃, the obtained porous substrate has macroscopically aligned open pores parallel to the ice growth direction, and micro pores on their surfaces. It was found that a porous body with such a unique pore structure is the most suitable for integrating a thin film with a porous substrate. A bi-layer consisting of a dense thin-film of CGO on the porous LSCF-CGO substrate has been then fabricated using a slurry-coating process.
社団法人日本セラミックス協会の論文
2002-05-01