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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

In-situ synthesis by Pechini method to obtain SBN61/NFO composite without abnormal grain growth

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Author(s):
J. R. Muñoz Hoyos ; E. R. Botero ; D. Garcia ; R. H. G. A. Kiminami
Total Authors: 4
Document type: Journal article
Source: Cerâmica; v. 63, n. 368, p. -, Dez. 2017.
Abstract

Abstract This work involved the in situ synthesis, by the Pechini method, of powders of the magnetoelectric composite Sr0.61Ba0.39Nb2O6/NiFe2O4 (SBN61/NFO), in a 50/50 ratio, to obtain sintered samples with control of abnormal grain growth of the SBN61 phase. The SBN61/NFO samples were characterized by thermogravimetric analysis, X-ray diffraction, and scanning and transmission electron microscopy. The phases in the synthesized samples were quantified by the Rietveld refinement method and the result revealed that the SBN61/NFO composite contained fewer spurious phases than the SBN61 phase alone. After sintering, the SBN61/NFO composite showed a relative density of 98.6%, excellent dispersion of the NFO and SBN61 phases, a low degree of percolation of the NFO phase, and microstructure without abnormal grain growth of the SBN61 phase. (AU)

FAPESP's process: 12/24025-0 - Magnetic, electrical and magnetostrictive properties of multiferroic composites and dilute magnetic semiconductors oxides
Grantee:Adilson Jesus Aparecido de Oliveira
Support type: Regular Research Grants
FAPESP's process: 08/04025-0 - Nanostructured multifunctional multiferroic materials: synthesis, properties, phenomenology and applications
Grantee:José Antonio Eiras
Support type: Research Projects - Thematic Grants