Enhanced electrical conductivity of zirconia-scandia with niobia addition
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2016
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EUROPEAN MATERIALS RESEARCH SOCIETY SPRING MEETING AND EXHIBIT
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Resumo
The electrical conductivity and the crystalline structure of zirconia-10 mol% scandia-x
mol% niobia solid electrolytes were investigated for x=0.25, 0.50 and 1.00 mol%. Dense
specimens with relative densities higher than 95% were obtained by solid state reaction and
sintering at 1500ºC for 5 h. Full stabilization of the cubic structure at room temperature was
obtained for compositions with x=0.50 and 1.00, whereas for x=0.25 cubic and rhombohedric
structures coexist. The electrical conductivity determined by impedance spectroscopy is of the
same order of magnitude as that of the parent solid electrolyte (zirconia-10 mol% scandia) in the
high temperature range (above 600ºC). The isothermal conductivity of the solid electrolyte with
x=0.50 mol% niobium oxide remains constant up to 100 h at 600ºC.
Como referenciar
GROSSO, R.L.; REIS, S.L.; MUCCILLO, E.N.S. Enhanced electrical conductivity of zirconia-scandia with niobia addition. In: EUROPEAN MATERIALS RESEARCH SOCIETY SPRING MEETING AND EXHIBIT, May 2-6, 2016, Lille, France. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/27601. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.