Synthesis of Ba3ZnNb2O9-Sr3ZnNb2O9 solid solution and their dielectric properties

Thirumal, M. ; Ganguli, A. K. (2002) Synthesis of Ba3ZnNb2O9-Sr3ZnNb2O9 solid solution and their dielectric properties Bulletin of Materials Science, 25 (4). pp. 259-262. ISSN 0250-4707

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Official URL: http://www.ias.ac.in/matersci/bmsaug2002/259.pdf

Related URL: http://dx.doi.org/10.1007/BF02704116

Abstract

Oxides of the type, Ba3−xSrxZnNb2O9 (0 ≤ x ≤ 3), were synthesized by the solid state route. Oxides calcined at 1000°C show single cubic phase for all the compositions. The cubic lattice parameter (a) decreases with increase in Sr concentration from 4·0938(2) forx = 0 to 4·0067(2) for x = 3. Scanning electron micrographs show maximum grain size for thex = 1 composition (~ 2 μm) at 1200°C. Disks sintered at 1200°C show dielectric constant variation between 28 and 40 (at 500 kHz) for different values of x with the maximum dielectric constant at x = 1.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Materials; Oxides; X-ray Diffraction; Dielectric Properties
ID Code:62019
Deposited On:16 Sep 2011 03:48
Last Modified:18 May 2016 11:28

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