Single cubic phase scandia-stabilized zirconia
Carregando...
Data
Data de publicação
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
ECS Transactions
ODS
Exportar
Resumo
ZrO2:10 mol% Sc2O3 was mixed with MnO2 to evaluate its effect
on cubic phase stabilization, oxide ion conductivity and aging at
600oC. Pressed ceramic pellets of zirconia stabilized with 10 mol%
scandia with addition of 1.0, 2.0 and 2.5 mol% MnO2 were sintered
at 1500°C/2 h. In situ high temperature X-ray diffraction data were
collected to follow the rhombohedral-to-cubic transition. Polished
and thermally etched surfaces of the sintered pellets were observed
in scanning electron microscope. Impedance spectroscopy
measurements were carried out. The single cubic structure is
achieved for the specimen with 2 mol% MnO2 nominal addition.
The electrical conductivity of this specimen was monitored at
600oC for 100 days. The ionic conductivity value remained
constant, suggesting its use as solid electrolyte in SOFCs operating
at that temperature.
Como referenciar
SANTOS, E.Z.; MUCCILLO, R. Single cubic phase scandia-stabilized zirconia: stabilization and aging at 600C. ECS Transactions, v. 68, n. 1, p. 421-427, 2015. DOI: 10.1149/06801.0421ecst. Disponível em: http://repositorio.ipen.br/handle/123456789/26146. 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.