Electrical properties of a composite of Polyurethane and ferroelectric ceramics
Journal of Materials Science, v. 33, n. 13, p. 3325-3329, 1998.
Sakamoto, W. K.
Kanda, D. H.
Das-Gupta, D. K.
Ferroelectric ceramic particles based on lead titanate zirconate (PZT) were dispersed in a polymer matrix based on castor oil. After the poling process, the pyroelectric activity of this composite was measured using a direct method in which a linear heating rate was applied to the pre-poled samples. The pyroelectric coefficient at 343 K is comparable with that of a PZT-poly(vinylidene fluoride) (PVDF) composite and significantly higher than that of PVDF. © 1998 Kluwer Academic Publishers.