Structural and dielectric investigations on BST-BZT composites

Structural and dielectric investigations on BST-BZT composites

Nanopowders of Ba0.8Sr0.2TiO3 (BST) and BaZr0.3Ti0.7O3 (BZT) are synthesized using hydroxide co-precipitation method. The nanoparticles are used to form composites z BST + (1-z) BZT for z = 0.,0.5 and 0.6 with 2 wt% Bi2O3 as a sintering aid. The powders of BST, BZT and composites are subjected to th...

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Veröffentlicht in:Indian journal of engineering and materials sciences 2008-04, Vol.15 (2), p.116-120
Hauptverfasser: Kulkarni, S B, Veer, S S, Salunkhe, D J, Kokare, S R, Joshi, P B
Format: Artikel
Sprache:eng
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Zusammenfassung:Nanopowders of Ba0.8Sr0.2TiO3 (BST) and BaZr0.3Ti0.7O3 (BZT) are synthesized using hydroxide co-precipitation method. The nanoparticles are used to form composites z BST + (1-z) BZT for z = 0.,0.5 and 0.6 with 2 wt% Bi2O3 as a sintering aid. The powders of BST, BZT and composites are subjected to the investigations of XRD, complex impedance and dielectric properties. The results on variation of dielectric constant with temperature and frequency are promising and suggest usefulness of composites as a RF dielectric material, in the paraelectric region.
ISSN:0971-4588