Materials Research (Feb 2016)

Microstructural and Electrical Features of Yttrium Stabilised Zirconia with ZnO as Sintering Additive

  • Raphael Fortes Marcomini,
  • Dulcina Maria Pinatti Ferreira de Souza

DOI
https://doi.org/10.1590/1980-5373-mr-2015-0161
Journal volume & issue
Vol. 19, no. 1
pp. 45 – 50

Abstract

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Adding ZnO reduces sintering temperature of yttria stabilized zirconia. Adding up to 0.5 wt% of ZnO is possible to densify to 8 mol% yttria stabilized zirconia (TZ8Y) to 95% of relative density at 1300 °C, besides, the electrical conductivity increases about 30% at 800 °C when compared to pure TZ8Y with the same relative density and average grain size. These results show that TZ8Y co-doped with ZnO can be a potential electrolyte to solid oxide fuel cells and electrolyzer cells.

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