Elaboration and characterization of BZT lead-free ceramic prepared in chemical way and with the addition of a sintering aid (LBCU). (23rd March 2016)

• Record Type: Journal Article
• Authors: Yessari, M.; Hajjaji, A.; Rguiti, M.; Aboubakr, S.; Arbaoui, A.
• Is Part Of: Molecular crystals and liquid crystals. Volume 628(2016)
• Page Start: 130
• Page End: 138
• Publication Date: 2016-03-23
• Subjects: lead-free ceramic -- chemical way -- sintering aid -- X-ray diffraction -- piezoelectric properties -- Barium Zirconate Titanate; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2015.1137150
• Languages: English
• ISSNs: 1542-1406

Abstract

Abstract: The Barium Titanates are very promising materials ecologically, but still have poor piezoelectric properties compared to the Lead Zirconate Titanates. So in order to improve them, a substitution of the zirconium in our ceramic (BT) has been investigated by X-ray diffraction (XRD) and grain size distribution. After the preparation of the BZT powder in chemical way we have added a sintering aid (Li2 O3 - Bi2 O3 -CuO) and we have tried to study our massive ceramic. The X-ray diffraction, grain size distribution and scanning electron microscope of the BZT with LBCu show a better particles arrangement and density. In other hand we have noticed an important improvement of the piezoelectric properties (d33 = 220 pC/N at 25°C) especially in comparison with other lead-free ceramics. These properties make BZT a lead-free high performance material for piezoelectric applications.