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Fabrication of yttria stabilized zirconia nanoparticles by the reverse microemulsionmethod for SOFC applications

Vatansever S., Öksüzömer F., Naci Koç S., Somer M., Deligöz H., Gürkaynak M. A.

Materials Science Poland

2010

Vol. 28, No. 1

85--91

Yttria stabilized zirconia powders were synthesized by the reverse microemulsion method. Powders were calcined from 600 °C to 1000 °C and sintered at 1450 °C. Crystalline properties and microstructure of samples were characterized by X-ray diffraction and scanning electron microscopy, respectively. Oxygen ionic conductivity was measured by electrochemical impedance spectroscopy. Sizes of yttria stabilized zirconia particles calcined at 1000 °C are lower than 100 nm, and approximately, 1 žm grain was obtained after sintering at 1450 °C.