Roy, S and Singh, S and Kumar, P and Bysakh, Sandip and Prasad, V V Bhanu (2013) Synthesis, consolidation and dielectric properties of BLT ceramics processed by M-PVA gel ignition technique. Advances in Applied Ceramics, 112 (5). pp. 263-269. ISSN 1743-6753

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Polycrystalline samples of lanthanum modified bismuth titanate ceramics with composition Bi3.25La0.75Ti3O12 (BLT) were prepared at three different sintering temperatures (1050, 1100 and 1150 degrees C) using M-PVA gel ignition technique. The samples were characterised for structural and electrical properties. A significant amount of as burnt BLT powder was found to be crystalline in nature having a yellowish colour. Very fine BLT nanoparticles were characterised by TEM analysis. Single phase with orthorhombic crystal structure was observed for all the samples, confirmed by X-ray analysis. Dielectric properties were studied as a function of frequency and temperature. More than 95% relative density was observed for all the three sintered samples. The sample sintered at 1100 degrees C showed highest dielectric constant and relative density and lowest loss.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Sep 2013 09:11
Last Modified: 12 Mar 2016 16:06

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