Forming of Cathodic Ceramic Film Using Airbrush for Application in High Temperature Solid Oxide Fuel Cells

Abstract

The high temperature solid oxide fuel cell (HTSOFC) can be manufactured in different configurations, which can to detach the planar and tubular. The HTSOFC are composed for four components that are cathode, electrolyte and anode for the formation of the unity cell; and interconnector, that establish connection these unity cells in series and parallel for bigger power generation. Different forming techniques are used for the manufacture of the components that need variable thicknesses for the forming ceramic films in the order of micrometers. In this work, the cathodic ceramic film of strontium-doped lanthanum manganite had been deposited on the electrolyte substrate of yttria-stabilized zirconia using the airbrush. In the forming ceramic film, the powder had been characterized by laser beam scattering granulometry and the suspension characterized by rheometry. The substrate and the ceramic film had been characterized by X-ray diffractometry and scanning electron microscopy. The conclusions of this work show that the airbrush allows flexibility in getting ceramic films with varied thicknesses with good adherence and low manufacture cost.