Effect of SrO on piezoelectric, dielectric and ferroelectric properties of (Ba12x 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 (Ba12x Srx) (Ti0.98 Zr0.02)O3 lead free piezoceramics. Journal of Materials Science, 26 . pp. 3143-3147. ISSN 0022-2461

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    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: Journal Article
    Additional Information: Copyright to this article belongs to M/s. Springer-Verlag
    Uncontrolled Keywords: Lead zirconate titanate (PZT);Piezoelectric properties;Barium titanate (BaTiO3)
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    Division/Department: Materials Science Division, Materials Science Division
    Depositing User: Ms. Alphones Mary
    Date Deposited: 01 May 2015 13:45
    Last Modified: 01 May 2015 13:45
    URI: http://nal-ir.nal.res.in/id/eprint/12094

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