Jf. Wang et al., SOFT PIEZOELECTRIC (1-X)PB(SC1 2TA1/2)O3-(X)PBTIO3 CERAMICS WITH HIGHCOUPLING FACTORS AND LOW QM/, Ferroelectrics. Letters section, 16(3-4), 1993, pp. 113-118
The piezoelectric behavior of materials from the (1-x)Pb(Sc1/2Ta1/2)O3
-(x)PbTiO3 solid solution system has been investigated. The [x=0.45] c
omposition in particular has exhibited an outstanding piezoelectric re
sponse [d33=650 (pC/N), k(t)=0.5, k(p)=0.61, k33=0.73] and a low mecha
nical quality factor [Q(M)=30]. These features make it a promising can
didate for a variety of piezoelectric sensor applications. The difficu
lties involved in effectively poling a bar sample and a means to avoid
these problems are also addressed.