caa a22 4500 463225430 CHVBK 20180405153225.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0560-3 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0560-3 Microstructural characterisation by X-ray scattering of perovskite-type La0.8Sr0.2MnO3±δ thin films prepared by a dip-coating process [Elektronische Daten] [P. Lenormand, A. Lecomte, C. Laberty-Robert, F. Ansart, A. Boulle] The La0.8Sr0.2MnO3 (LSM) cathode materials are widely used in solid oxide fuel cells (SOFCs) as electronic conductors. In such materials, the reduction of oxygen is located at the triple contact boundaries: air/cathode LSM/electrolyte which is generally Yttria Stabilised Zirconia (YSZ). In order to improve the chemical reactions at these air/cathode LSM/electrolyte interfaces, the triple phase boundary length has to be optimised. In this aim, we have first synthesised the La0.8Sr0.2MnO3 phase by a sol-gel route and, second, LSM thin films have been deposited on various polished substrates by using a dip-coating process. The structure and microstructure of the resulting LSM thin layers have been investigated by using well suited complementary techniques such as X-ray reflectometry, grazing incidence small angle X-ray scattering, X-ray diffraction and scanning electronic microscopy. The structural and microstructural parameters of LSM thin films have been managed and studied as a function of synthesis parameters such as initial metallic salt concentration, time and temperature of annealing. The higher the metallic salt concentration, the higher the thickness of the film, the smaller the film density. The as-prepared layers are amorphous and the single crystallised perovskite form is obtained for low temperature heat treatments. Therefore, the annealed coatings are constituted by randomly oriented LSM nanocrystals, which organise in a more or less dense close-packed microstructure according to the initial metallic salt concentration. Springer Science+Business Media, LLC, 2007 Lenormand P. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Lecomte A. Science des Procédés Céramiques et Traitements de Surface, UMR 6638-CNRS ENSCI, 47-73 Avenue Albert Thomas, 87065, Limoges Cedex, France aut Laberty-Robert C. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Ansart F. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut Boulle A. Science des Procédés Céramiques et Traitements de Surface, UMR 6638-CNRS ENSCI, 47-73 Avenue Albert Thomas, 87065, Limoges Cedex, France aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4581-4590 0022-2461 42:12<4581 2007 42 10853 https://doi.org/10.1007/s10853-006-0560-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0560-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lenormand P. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Lecomte A. Science des Procédés Céramiques et Traitements de Surface, UMR 6638-CNRS ENSCI, 47-73 Avenue Albert Thomas, 87065, Limoges Cedex, France aut NATIONALLICENCE 700 1- Laberty-Robert C. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Ansart F. Centre Inter-universitaire de Recherche et d'Ingénierie sur les MATériaux, UMR 5085, Université Paul Sabatier, Bât. 2R1-118 route de Narbonne, 31062, Toulouse Cedex 4, France aut NATIONALLICENCE 700 1- Boulle A. Science des Procédés Céramiques et Traitements de Surface, UMR 6638-CNRS ENSCI, 47-73 Avenue Albert Thomas, 87065, Limoges Cedex, France aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4581-4590 0022-2461 42:12<4581 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer