Structure and dielectric studies of (1-x)Ba0.06(Na0.5Bi0.5)0.94TiO3- xBa(Fe0.5Nb0.5)O3 lead-free ceramics
In this work, the effects of Ba(Fe0.5Nb0.5)O3 (BFN) addition on the structure and dielectric behaviour of Ba0.06(Na0.5Bi0.5)0.94TiO3 (BNBT) ceramics have been reported. The lead-free (1-x)BNBT-xBFN (where 0 ? x ? 1.0) solid-solutions were synthesized by traditional ceramics fabrication technique and...
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Published in | Processing and Application of Ceramics Vol. 13; no. 4; pp. 418 - 426 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
University of Novi Sad
2019
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Subjects | |
Online Access | Get full text |
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Summary: | In this work, the effects of Ba(Fe0.5Nb0.5)O3 (BFN) addition on the structure
and dielectric behaviour of Ba0.06(Na0.5Bi0.5)0.94TiO3 (BNBT) ceramics have
been reported. The lead-free (1-x)BNBT-xBFN (where 0 ? x ? 1.0)
solid-solutions were synthesized by traditional ceramics fabrication
technique and sintered at temperatures up to 1325?C. The X-ray diffraction
peaks of the compounds of the entire series were indexed. It is found that
the crystal structure of the obtained solid solutions changed from
rhombohedral (R3c) to cubic (Pm3m) with an increase in BFN content. The
Fourier transformed infrared and Raman spectra also confirmed the formation
of solid-solutions. SEMstudies were carried out to evaluate the purity and
microstructure of the fabricated ceramics. The dependence of phase
transition broadening, phase transition temperature and dielectric
parameters with compositional changes were also studied.
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ISSN: | 1820-6131 2406-1034 |
DOI: | 10.2298/PAC1904418R |