Piezoelectric properties of new MnO2-added 0.2 PZN–0.8 PZT ceramic

The development of a new piezoelectric material, 0.5 wt% MnO2-added (Pb0.95Sr0.05)((Zn1/3Nb2/3)0.20(Zr0.50Ti0.50)0.80)O3 ceramics (PZNST), optimised for use in multilayer piezoelectric transformer applications, is described. The requirements of such a material are high mechanical quality factor (Qm)...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2004-03, Vol.58 (9), p.1508-1512
Main Authors: Hou, Y-D, Zhu, M-K, Wang, H, Wang, B, Yan, H, Tian, C-S
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The development of a new piezoelectric material, 0.5 wt% MnO2-added (Pb0.95Sr0.05)((Zn1/3Nb2/3)0.20(Zr0.50Ti0.50)0.80)O3 ceramics (PZNST), optimised for use in multilayer piezoelectric transformer applications, is described. The requirements of such a material are high mechanical quality factor (Qm), electromechanical coupling factor (kp), Curie temperature (Tc) and low dielectric dissipation factor (tan delta), and, at the same time, a relatively low sintering temperature. The dielectric and piezoelectric properties of PZNST were studied at different sintering temperatures (900-1100 C). The pure perovskite phase was formed by the columbite precursor method. The optimum values of Qm, kp, tan delta, epsilon(r), Tc and d33 were 1360, 0.62, 0.002, 1240, 320 C and 325 pC/N, respectively, at calcination temperature of 850 C and sintering temperature of 1000 C. 11 refs.
ISSN:0167-577X
DOI:10.1016/j.matlet.2003.10.013