Effect of SrO on piezoelectric, dielectric and ferroelectric properties of (Ba1−x Srx) (Ti0.98 Zr0.02)O3 lead free piezoceramics

Chandraiah, M and Panda, PK (2015) Effect of SrO on piezoelectric, dielectric and ferroelectric properties of (Ba1−x Srx) (Ti0.98 Zr0.02)O3 lead free piezoceramics. Journal of Materials Science: Materials in Electronics, 26 (5). pp. 3143-3147. ISSN 09574522

Text 10.1007%2Fs10854-015-2809-6.pdf Restricted to Registered users only Download (861kB) | Request a copy

Abstract

Effect of SrO on piezoelectric, dielectric and ferroelectric properties of (Ba1-x Srx) (Ti0.98 Zr0.02)O3, (x = 0.00, 0.01, 0.015, 0.02 and 0.03 mol) lead free piezoceramics was studied. The powders were prepared by ‘‘mixed oxide’’ route, calcined at 1,000 C for 4 h. XRD patterns of the calcined powders confirm the orthorhombic phase. The calcined powders were de-agglomerated, pressed into pellets and sintered at 1,150 C for 3 h. Scanning electron microscopy studies of thermally etched sintered pellets show increase in the grain size with the increase in SrO concentration. The piezoelectric charge constant (d33 = 330 pC/N), dielectric constant (K = 2,337) and remnant polarization (Pr = 4.69 lC/cm2 ) were maximum for 0.015 mol of SrO. The temperature versus dielectric constant graph was plotted for 0.015 mol SrO doped BZT and the Curie temperature was found to be 116 C.

Item Type:	Article
Subjects:	CHEMISTRY AND MATERIALS > Chemistry and Materials (General) CHEMISTRY AND MATERIALS > Composite Materials
Depositing User:	Mrs SK Pratibha
Date Deposited:	18 Jun 2018 11:48
Last Modified:	18 Jun 2018 11:48
URI:	http://nal-ir.nal.res.in/id/eprint/12812

Actions (login required)

View Item