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Lead zirconate titanate PZT

Lead zirconate titanate (PZT) is a ceramic material made of lead (Pb), oxygen (O) and titanium (Ti) or zirconium (Zr).

PZT strcuture

Chemical formula: Pb [ZrxTi1-x] O3 ; x = 0,52

The atoms are arranged in a cubical structure.

At temperatures below the Curie temperature (depending on the material between 150C and 200C) the titanium atom moves from its central position and the electrically neutral lattice becomes a dipole.

This dipole lattice presents now piezoelectric characteristics and is considered as one of the most economical piezoelectric material.

By doping the PZT material, its piezoelectric characteristics can be modified: especially the hardness or softness of the material.


Copyright 2006
Last updated 21 July 2006