Patent ID: 8216488

Claim:
A method for preparing a PZT composition of the formula: Pb x Sr (1-x) (Mn 1/3 Sb 2/3 ) (1-y) (Zr z Ti 1-z ) y O 3 wherein x is about 0.96; wherein y is about 0.94; and wherein z is about 0.5; and further including about 0.4% CeO 2 , about 1% CuO, and about 4% Nb 2 O 5 as dopants; the method comprising combining oxides of Pb, Sr, Mn, Sb, Zr, Ti, Ce, Cu, and Nb and calcining the combined oxides so as to produce a PZT composition of the stated formula and including about 0.4% CeO 2 , about 1% CuO, and about 4% Nb 2 O 5 .