Production and characterization of (K Na)(Nb Cu)O3 crystal fibers grown by micro-pulling-down method
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Ferroelectrics
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Resumo
Cu-doped sodium potassium niobate single crystal fibers (KNN-Cu)
were grown by the micro-pulling-down technique under different
atmospheres, namely, argon, synthetic air and oxygen. The structural
analysis revealed that all fibers were grown in the perovskite phase
with no secondary phase. In comparison with the precursors powders,
the results from EDX showed no significative chemical changes,
suggesting that monocrystalline and stoichiometric KNN-Cu fibers
were produced. The ferroelectric phase transitions characterized by
thermal strain measurements corroborated this assumption. The
dielectric results showed that the fibers produced under synthetic air
presented the best results. Piezoresponse measurements revealed
domains with typically orthorhombic symmetry morphology.
Como referenciar
SILVA, M.V.S.; SANTO, A.M.E.; BALDOCHI, S.L.; GONÇALVES, A.M.; EIRAS, J.A.; LENTE, M.H. Production and characterization of (K Na)(Nb Cu)O3 crystal fibers grown by micro-pulling-down method. Ferroelectrics, v. 545, n. 1, p. 89-96, 2019. SI. DOI: 10.1080/00150193.2019.1621693. Disponível em: http://repositorio.ipen.br/handle/123456789/30469. 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.