Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films

• Autorzy: Andrzejczuk M. , Vasylyev O. , Brychevskyi M. , Dubykivskyi L. , Smirnova A. , Lewandowska M. , Kurzydłowski K. J. , Steiberger-Wilckens R. , Mertens J. , Haanappel V.
• Języki publikacji: EN

Abstrakty

EN

The structure of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) electrolyte film deposited by EB-PVD (Electron Beam-Physical Vapour Deposition) technique on NiO-ZrO2 substrate was characterized by electron microscopy. The highly porous substrate was densely covered by deposited film without any spallation. The produced electrolyte layer was of a columnar structure with bushes, bundles of a diameter up to 30 ?m and diverse height. Between the columns, delamination cracks of few microns length were visible. The annealing of zirconia film at 1000 °C resulted in its densification. The columnar grains and delaminating cracks changed their shape into a bit rounded. High magnification studies revealed nanopores 5-60 nm formed along the boundaries of the columnar grains during annealing. High-quality contacts between the electrolyte film and anode substrate ensured good conductivity of the electrolyte film and high efficiency of SOFC.

Słowa kluczowe

EN

SOFC; interface; FIB; microstructure characterization

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2012
• Tom: Vol. 30, No. 3
• Strony: 170--179
• Opis fizyczny: Bibliogr. 14 poz.

Twórcy

autor

Andrzejczuk M.

autor

Vasylyev O.

autor

Brychevskyi M.

autor

Dubykivskyi L.

autor

Smirnova A.

autor

Lewandowska M.

autor

Kurzydłowski K. J.

autor

Steiberger-Wilckens R.

autor

Mertens J.

autor

Haanappel V.

• Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland

Bibliografia

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