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Chilibon, I.
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article
Ultrasound role in sol-gel processing of PbTiO3 ceramics
Abstract
<p>Lead titanate (PbTiO<sub>3</sub>) powders in tetragonal form have been successfully prepared by solgel method. The processing of lead titanate ceramics was followed up using techniques such as: X-ray diffraction (XRD), thermal analysis (DSC) and microscopy (SEM). Three lead titanate powders have been obtained in different conditions function of annealing temperature and ultrasound field. The sol-gel process may be improved by ultrasound gel irradiation in an optimum irradiation time, and implies the structure homogeneity of PT powders. The ceramic powder, which had ultrasound irradiated gel, exhibited higher Curie temperature than ceramic powders obtained in the typical sol-gel process.</p>