Deposition Via Dip Coating Technique of Dense Yttrium Stabilized Zirconia Layers

Authors

  • Jonas Gurauskis

    Corresponding authorCurrent affiliation:
    1. Department of Materials Science and Engineering, Norwegian University of Science and Technology, Trondheim, Norway
    • Instituto de Ciencia de Materiales de Aragón, CSIC- Universidad de Zaragoza, Zaragoza, Spain
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jonas.gurauskis@material.ntnu.no

Abstract

A deposition of yttrium stabilized zirconia layer for its use as an electrolyte in solid oxide fuel cell was performed using dip coating technique. Two commercially available surfactant systems were evaluated; nonionic surfactant which stabilizes only by steric repulsion and anionic surfactant which provides both steric and electrostatic repulsion. Dip coating process was optimized to two step deposition process. Uniform 10–15 μm thick yttria stabilized zirconia (YSZ) electrolyte layer is obtained after the final sintering step at 1400°C. Impedance spectroscopy measurements showed that selected phosphate ester based surfactant has negligible effect on the performance of the YSZ material as electrolyte.

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