Synthesis of scandia-stabilized zirconia nanoparticles by the polyacrylamide technique
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
Solid State Ionics
Exportar
Resumo
The synthesis of ZrO2:10 mol% Sc2O3 powders by the polyacrylamide technique was carried out using zirconium and scandium precursor solutions, acrylamide, N,N′-methylene-bisacrylamide and ammonium persulfate. The polymerization process occurred in few seconds and, without any precipitation, transparent polymeric gels were obtained. Calcination of the gels produced nanosized ceramic powders fully stabilized in the cubic fluorite structure. High specific surface area powders of 78 m2/g, corresponding to ~ 13 nm average particle size for an average crystallite size of 5 nm, evaluated by X-ray diffraction, were obtained after calcination at 500 °C. The powders were characterized by in situ high temperature X-ray diffraction and scanning electron microscopy. Pellets sintered at 1500 °C show high values of oxide ion conductivity.
Como referenciar
COSTA, G.C.C.; MUCCILLO, R. Synthesis of scandia-stabilized zirconia nanoparticles by the polyacrylamide technique. Solid State Ionics, v. 179, n. 21-26, p. 1219-1222, 2008. DOI: 10.1016/j.ssi.2008.01.005. Disponível em: http://repositorio.ipen.br/handle/123456789/4971. Acesso em: 30 Dec 2025.
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.