Structural and Dielectric Properties of BaTi1-xSnxO3 Ceramics


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BaTi1-xSnxO3 (BTS) powders, with x ranging from 0 to 1, were synthesized by solid-state reaction technique. The powders were pressed into pellets and sintered at 1370 and 1420 oC. The structural characterization of sintered BTS samples was made at room temperature using X-ray diffraction and Raman spectroscopy measurements. The BTS samples were found to be singlephase solid solutions. Dielectric properties of sintered BTS samples were studied as a function of sintering temperatures and tin contents, too. For samples with x ranging from 0 up to 0.15, it has been found that the Curie temperature decreases while the maximum of the dielectric constant increases with increasing tin content. These samples have relatively high dielectric constants, contrary to x > 0.2 samples with very low dielectric constants. It is noticed that BTS ceramics sintered at 1420 oC exhibit better dielectric properties than those sintered at 1370 oC.



Edited by:

Dragan P. Uskokovic, Slobodan K. Milonjic and Dejan I. Rakovic




S. Marković et al., "Structural and Dielectric Properties of BaTi1-xSnxO3 Ceramics", Materials Science Forum, Vol. 518, pp. 241-246, 2006

Online since:

July 2006




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