Effects of the additions of strontium gallate on Electrical conductivity of La0.9Sr0.1Ga0.8Mg0.2O3-δ
Carregando...
Data
Data de publicação:
2016
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
BRAZILIAN MRS MEETING, 15th
Exportar
Resumo
Strontium and magnesium-doped lanthanum gallate La1-xSrxGa1-yMgyO3-δ (LSGM) is
a promising solid electrolyte for using in solid oxide fuel cells, due to its high ionic
conductivity at intermediate temperatures (600 – 800 ºC) compared to yttriastabilized
zirconia (YSZ). In addition, LSGM has negligible electronic conductivity
and high chemical stability over a broad range of oxygen partial pressures [1-3].
In this work, the composition La0.9Sr0.1Ga0.8Mg0.2O3-δ with small additions of
strontium gallate was prepared by solid-state reaction and the influence of the
additive on the ionic conductivity and phase composition was investigated. The
sintered solid electrolytes achieved densities higher than 95% of the theoretical
value and the average grain size amounts 2.40 μm after sintering at 1350°C. The
contents of secondary phases decreased with increasing strontium gallate
additions. The additive was found to have a beneficial effect on the bulk ionic
conductivity.
Como referenciar
REIS, SHIRLEY L. dos; MUCCILLO, ELIANA N. dos S. Effects of the additions of strontium gallate on Electrical conductivity of La0.9Sr0.1Ga0.8Mg0.2O3-δ. In: BRAZILIAN MRS MEETING, 15th, September 25-29, 2016, Campinas, SP. Abstract... São Carlos, SP: Aptor Software, 2016. p. 635-635. Disponível em: http://repositorio.ipen.br/handle/123456789/28075. Acesso em: 23 May 2024.
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.