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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.15 [2008] >
IJEMS Vol.15(2) [April 2008] >
| Title: | Structural and dielectric investigations on BST-BZT composites |
| Authors: | Kulkarni, S B
Veer, S S
Salunkhe, D J.
Kokare, S R
Joshi, P B |
| Keywords: | BST
BZT
Composites
Hydroxide co-precipitation
Dielectric properties |
| Issue Date: | Apr-2008 |
| Publisher: | CSIR |
| Abstract: | 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 = 0.4, 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. |
| Page(s): | 116-120 |
| ISSN: | 0971-4588 |
| Source: | IJEMS Vol.15(2) [April 2008]
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