PIEZOELECTRIC POWDER AND MANUFACTURE

摘要

PbTiO3 crystals are produced for mixing with a flexible host material to form a flexible hydrophone element. The crystals are grown by heating the PbTiO3 in the presence of PbO to a desired average grain size of approximately 8-15 mu m. The crystals are thereafter etched to result in an average grain size of approximately 12-20 mu m with a relatively narrow grain size distribution.