MUCCILLO, ELIANA N. dos S.GROSSO, ROBSON L.REIS, SHIRLEY L. dosMUCCILLO, REGINALDO2017-09-262017-09-262017MUCCILLO, ELIANA N. dos S.; GROSSO, ROBSON L.; REIS, SHIRLEY L. dos; MUCCILLO, REGINALDO. Influence of additives on phase stabilization of scandia-doped zirconia. <b>Revista Matéria</b>, v. 22, n. 2, 2017. DOI: <a href="https://dx.doi.org/10.1590/S1517-707620170002.0154">10.1590/S1517-707620170002.0154</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/27789.1517-7076http://repositorio.ipen.br/handle/123456789/27789The effects of small additions of tin, zinc, calcium and boron oxides on phase composition and electrical conductivity of zirconia-10 mol% scandia were investigated. Compounds containing 1 mol% zinc, tin and calcium oxides and 1, 3 and 5 wt.% boron oxide were prepared by solid state reaction and characterized by X-ray diffraction, density measurements, scanning electron microscopy and impedance spectroscopy. Full stabilization of the cubic structure at room temperature was obtained with additions of 1 mol% calcium oxide and 2 wt.% boron oxide. Partially stabilized compounds exhibit herringbone structure, characteristic of the β- rhombohedric phase. Specimens with calcium as additive show total conductivity of 23.8 mS.cm-1 at 750ºC with activation energy of 1.13 eV. Liquid phase sintering by boron oxide addition is effective to enhance the densification of the solid electrolyte.openAccessadditivesdensitydoped materialsionic conductivityphase stabilityscandiumscanning electron microscopysinteringx-ray diffractionzirconiumArtigo de periódico22210.1590/S1517-707620170002.0154https://orcid.org/0000-0002-8598-279Xhttps://orcid.org/0000-0001-9219-388X3.33