Abstract

Abdelhalim Elbasset^1,2, Farid Abdi¹ , Taj-Dine Lamcharfi¹ and Nor-Said Echatoui¹

DOI : http://dx.doi.org/10.13005/ojc/320326

Structural characteristics of Ba_0.0975S_0.025TiO₃ (BS_0.025T) ceramics calcined at different temperatures at 800, 850 and 900°C for 4 hours hove been investigated. Results DRX showed that the change in the cell parameter along a axis (a) is more important than that along c axis and is accompanied by spacing of these parameters. In addition they indicate that the diminuation of symmetry is caused by the increase of the calcination temperature This trend towards the  tetragonale phase  was confirmed by Raman spectroscopy. Electronic scan microscopy (SEM) has given  the grains mean  size, the latter increase and reaches a mean size of approximately 1.97 μm when the calcination temperature increases equals 900°C.

Structural characteristics; DRX; Raman spectroscopy

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