Preparation of Ba(Ti,Zr)O3 thick films by screen printing

BaTi1-xZrxO3 (x = 0-0.1) thick films were prepared by a screen-printing method on Pt bottom electrodes using ceramic substrates in the firing temperature range from 1250degreesC to 1450degreesC. The dielectric, ferroelectric and electric-field-induced strain properties of the thick films were examined in comparison with those of bulk ceramics. The optimum firing temperature to obtain maximum remanent polarization was 1400degreesC for the thick films. The phase transition temperatures were controlled by varying composition x for the thick films as well as the bulk ceramics. The maximum remanent polarization of 14.4 muC/cm(2) for the thick film was obtained at x = 0.025 in the orthorhombic phase.